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Kabushiki Kaisha Kobe Seiko Sho kobe Steel Ltd
Kabushiki Kaisha Kobe Seiko Sho
Kabushiki Kaisha Kobe Seiko Sho Kobe Steel Ltd
Kabushiki Kaisha Kobe Seiko Sho kobe Steel ltd
Kabushiki Kaisha Kobe Seiko Sho kobe Steet Ltd
Kabushiki Kaisha Kobe Seiko Sho kove Steel Ltd
Kabushiki Kaisha Kobe Seiko Sho kobe Steel Ltd_20100121
Kabushiki Kaisha Kobe Seiko Sho kobe Steel Ltd_20100114
Kabushiki Kaisha Kobe Seiko Sho kobe Stee Ltd
Kabushiki Kaisha Kobe Seiko Sho Kove Steel Ltd
Kabushiki Kaisha Kobe Seiko Sho kobe Steel Ltd_20100128
Kabushiki Kaisha Kobe Seiko Sho kobe Steel Ltd_20100107
Kabushiki Kaisha Kobe Seiko Sho kobe Steel ltd_20100114
Kabushiki Kaisha Kobe Seiko Sho kobe steel Ltd
Kabushiki Kaisha Kobe Seiko Sho koke Steel Ltd
Kabushiki Kaisha Kobe Seiko Sho kobe Stell Ltd
Kabushiki Kaisha Kobe Seiko Sho kobe Steel ltd_20100128
Kabushiki Kaisha Kobe Seiko Sho kobe Steel Tld
Kabushiki Kaisha Kobe Seiko Shoo kobe Steel Ltd
Kabushiki Kaisha Kobe Seiko Sho kobe Steel Ltd_20131212

Kabushiki Kaisha Kobe Seiko Sho patents


Recent patent applications related to Kabushiki Kaisha Kobe Seiko Sho. Kabushiki Kaisha Kobe Seiko Sho is listed as an Agent/Assignee. Note: Kabushiki Kaisha Kobe Seiko Sho may have other listings under different names/spellings. We're not affiliated with Kabushiki Kaisha Kobe Seiko Sho, we're just tracking patents.

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Release device and release method

A release device for releasing a specific gas component from a rich absorption liquid which is an absorption liquid containing the specific gas component absorbed therein, the release device including a channel structure internally having a release channel which is connected to a rich absorption liquid supply unit so as to receive the rich absorption liquid supplied from the rich absorption liquid supply unit and connected to a liberating agent supply unit so as to receive a liberating agent supplied from the liberating agent supply unit, the liberating agent having a boiling point lower than a boiling point of the rich absorption liquid and being incompatible with the rich absorption liquid. The release channel is a microchannel configured to guide the received rich absorption liquid so that the received rich absorption liquid releases the specific gas component while flowing. ... Kabushiki Kaisha Kobe Seiko Sho

Compressed air energy storage and power generation method and compressed air energy storage and power generation device

In a compressed air energy storage and power generation device, a compressed air energy storage and power generation method defines, as a reference storage value, a storage value indicating that a storage amount of air in an accumulator tank is in a predetermined intermediate state. At the reference storage value, at least one of a motor and a generator rotates at a rated rotation speed. ... Kabushiki Kaisha Kobe Seiko Sho

Mixed powder for iron-based powder metallurgy and sintered body produced using same

The mixed powder for iron-based powder metallurgy of the present invention comprises: at least one ternary oxide selected from the group consisting of ca—al—si oxides and ca—mg—si oxides, and at least one binary oxide selected from the group consisting of ca—al oxides and ca—si oxides. The ternary oxide and the binary oxide are contained in a sum weight of 0.025 wt % or more to 0.3 wt % or less.. ... Kabushiki Kaisha Kobe Seiko Sho

Organic electronic device and substrate for organic electronic device

An organic electronic device provided with an organic electronic element on one surface of a substrate, wherein the substrate has a metal layer and an insulating layer overlaid on at least one face side of the metal layer, and the one face of the substrate does not have an irregularity peak having a k value of equal to or lower than −0.07 as calculated by expression (1). In the expression (1), x represents an irregularity peak position when a line roughness analysis is conducted on a 10 μm square on the one face of the substrate with an interval of 2.45 nm, f(x) represents a surface irregularity height (nm) at x, and dx represents an infinitesimal change in x. ... Kabushiki Kaisha Kobe Seiko Sho

Horizontal fillet welding method, horizontal fillet welding system, and program

A welding system that, using a junction at which a standing plate and a bottom plate meet as a welding line, makes an electrode weave centered on the welding line and thereby welds along the welding line. While weaving, the electrode moves forward in a welding advancement direction until a bottom-plate-side weaving edge. ... Kabushiki Kaisha Kobe Seiko Sho

High-strength aluminum alloy sheet

An al—mg—si aluminum alloy sheet has a chemical composition which includes at least one element selected from the group consisting of mn, cr, and zr and which meets the condition: 0.6≤([mg]/[si]-0.15[mn]-0.3[cr]-0.1[zr]≤1.8. The aluminum alloy sheet is controlled to have a higher aspect ratio of grains, thereby has significantly higher strength after artificial aging such as paint bake (after bake hardening), and satisfactorily has strength necessary for automobile structural components, without deterioration in bendability.. ... Kabushiki Kaisha Kobe Seiko Sho

Steel wire for mechanical structural parts

An object of the present invention is to provide a steel wire for mechanical structural parts that is reduced in deformation resistance and improved in crack resistance during cold working, and thus exhibits excellent cold workability. The steel wire for mechanical structural parts of the present invention is a steel wire containing, in mass %, 0.3 to 0.6% of c, (105 to 0.5% of si, 0.2 to 1.7% of mn, more than 0% and 0.03% or less of p, 0.001 to 0.05% of s, 0.005 to 0.1% of al, and 0 to 0.015% of n, the balance being iron and inevitable impurities, wherein steel of the steel wire has a metal structure formed of ferrite and cementite, and the number proportion of cementite particles present in ferrite grain boundaries is 40% or more based on the total number of cementite particles.. ... Kabushiki Kaisha Kobe Seiko Sho

Automobile undercarriage component

An automobile undercarriage component has at least three elongated arms, each including a web and a rib having an inner wall surface. One of the three elongated arms is a first arm having a first one of the ribs and at least one of the three elongated arms is a second arm having a second one of the ribs. ... Kabushiki Kaisha Kobe Seiko Sho

Flux-cored wire for gas-shielded arc welding and welding method

The purpose of the present invention is to provide a flux cored wire which has good high-temperature cracking resistance, and which enables the achievement of a welded part exhibiting excellent coating adhesion. The present invention relates to a metal flux cored wire for gas-shielded are welding, which contains, relative to the total mass of the wire, 0.02-0.30% by mass of c, 0.3-1.5% by mass of si, 0.3-2.5% by mass of mn, and oxide of at least one element selected from the group consisting of si, cr and ni in an amount of 0.01-0.30% by mass in total, 0.020% by mass or less of s, and 0.3% by mass or less of al, ca, mg, k and na in total in the form of metals or alloys, with the balance made up of fe and unavoidable impurities.. ... Kabushiki Kaisha Kobe Seiko Sho

Mixed powder for iron-based powder metallurgy, method for producing same, and sintered body produced using same

The mixed powder for iron-based powder metallurgy of the present invention comprises a powder containing calcium sulfate anhydrite ii such that the cas weight ratio after sintering is 0.01 wt % or more to 0.1 wt % or less. The powder containing calcium sulfate anhydrite ii preferably has a volume-average particle size of 0.1 μm or more to 60 μm or less and preferably additionally contains one or more ternary oxides selected from the group consisting of ca—al—si oxides and ca—mg—si oxides. ... Kabushiki Kaisha Kobe Seiko Sho

System and method of cleaning condenser for binary power generation

A system of cleaning a condenser provided in a circulation flow passage for allowing circulation of a working medium in a binary power generation system, includes: an inlet header into which a cooling medium flows; and a heat exchanger including a plurality of branch ports into which the cooling medium flows from the inlet header. The heat exchanger is configured to perform heat exchange between the working medium and the cooling medium to condense the working medium. ... Kabushiki Kaisha Kobe Seiko Sho

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

High-carbon steel wire material with excellent wire drawability, and steel wire

To provide a high-carbon steel wire rod with excellent wire drawability. The high-carbon steel wire rod of the present invention includes predetermined components and also includes pearlite and proeutectoid cementite, and an area ratio of pearlite is 90% or more relative to the entire structure, a maximum length of proeutectoid cementite is 15 μm or less, and a concentration difference between an average of the si concentration inside proeutectoid cementite and a maximum value of the si concentration inside ferrite that forms a lamellar structure of pearlite is 0.50 to 3%.. ... Kabushiki Kaisha Kobe Seiko Sho

Heat-treated steel wire having excellent bendability

A heat-treated steel wire having excellent bendability is provided. The heat-treated steel wire includes, in % by mass: c: 0.5 to 0.8%, si: 1.5 to 2.5%, mn: 0.5 to 1.5%, p: more than 0% to 0.02%, s: more than 0% to 0.02%, cr: 0.3 to less than 0.7%, v: 0.05 to 0.5%, al: more than 0% to 0.01%, n: more than 0% to 0.007%, and o: more than 0% to 0.004%, and iron. ... Kabushiki Kaisha Kobe Seiko Sho

03/22/18 / #20180079178

Surface-treated metal plate

A surface-treated metal sheet which is used for insert molding and in which a hot melt adhesive layer is laminated on at least one side of a metal substrate, where the hot melt adhesive layer has a thickness of 10 to 100 μm; the hot melt adhesive layer contains a high melting point crystalline modified polypropylene having a melting point of 120° c. Or higher and a low melting point crystalline modified polypropylene having a melting point of lower than 120° c.; and the rate of change of tensile shear adhesion strength measured at 23° c. ... Kabushiki Kaisha Kobe Seiko Sho

03/15/18 / #20180073124

Hard coating

A hard coating to be disposed on or over a substrate surface is provided. The hard coating includes a nitride or carbonitride containing al, cr, and at least one element x. ... Kabushiki Kaisha Kobe Seiko Sho

03/15/18 / #20180073093

Heat-treated steel wire having excellent fatigue-resistance characteristics

To provide a heat-treated steel wire having excellent fatigue-resistance characteristics. The heat-treated steel of the present invention has a predetermined chemical composition, with the balance being iron and inevitable impurities, wherein the heat-treated steel wire includes, in a tempered martensite structure at a depth of 0.3 mm from a surface layer: cr based carbides having a circle equivalent diameter of 0.1 μm or more and less than 0.3 μm in 0.20 particles/μm2 or less, cr based carbides having a circle equivalent diameter of 0.3 μm or more and less than 0.7 μm in 0.002 particles/μm2 or less, and cr based carbides having a circle equivalent diameter of 0.7 μm or more in 0.0010 particles/μm2 or less, and wherein the amount of residual austenite exceeds 5% and 15% or less in terms of a volume ratio.. ... Kabushiki Kaisha Kobe Seiko Sho

03/15/18 / #20180071867

Method for producing aluminum joined body

A method for producing an aluminum joined body includes a step of forming a flare joint by using a first aluminum member and a second aluminum member; and a step of performing laser welding by irradiating a groove of the flare joint with a laser beam having a beam diameter of 0.8 to 3.5 mm while feeding a filler material to the groove, the filler material being made of an aluminum alloy containing, in percent by mass, 1.0% to 3.0% of mg, 0.50% to 1.0% of mn, 0.05% to 0.20% of cr, and 0.05% to 0.20% of ti, with the balance being aluminum and incidental impurities.. . ... Kabushiki Kaisha Kobe Seiko Sho

03/15/18 / #20180071866

Method for producing aluminum joined body

A method for producing an aluminum joined body includes a step in which a second aluminum member is superimposed on a first aluminum member to form a lap joint, the second aluminum member having a higher electrical conductivity than the first aluminum member; and a beam welding step in which a high-energy beam is impinged on a side of the lap joint on which the second aluminum member is located in order to form a fusion-solidification zone that penetrates the lap joint.. . ... Kabushiki Kaisha Kobe Seiko Sho

03/08/18 / #20180067024

Residual stress estimation method and residual stress estimation device

Provided is a residual stress estimation method and a residual stress estimation device which are capable of setting an appropriate analysis range without depending on a user's experience. The residual stress estimation device displays analysis results in which strain generated in a structure is analyzed. ... Kabushiki Kaisha Kobe Seiko Sho

03/08/18 / #20180066344

Wire rod for use in bolts that has excellent acid pickling properties and resistance to delayed fracture after quenching and tempering, and bolt

To provide a wire rod for bolts that has excellent acid pickling properties and the resistance to delayed fracture after quenching and tempering, and a bolt using the same. Disclosed is a wire rod for bolts that has excellent acid pickling properties and resistance to delayed fracture, including, in percent by mass: c: 0.3 to 0.6%; si: 1.0 to 3.0%; mn: 0.1 to 1.5%; p: more than 0% and 0.020% or less; s: more than 0% and 0.020% or less; cr: 0.3 to 1.5%; al: 0.02 to 0.10%; and n: 0.001 to 0.020%, with the balance being iron and inevitable impurities, wherein in a d× 1/4 position of the wire rod, where d is a diameter of the wire rod, a ferrite area ratio is in a range of 10 to 40%, with the remaining microstructure being bainite, pearlite and an inevitably formed microstructure, and a c content in a position at a depth of 0.1 mm from a surface layer of the wire rod is in a range of 50 to 100% of a c content in a base material.. ... Kabushiki Kaisha Kobe Seiko Sho

03/08/18 / #20180065145

Steel wire surface treatment method and surface treatment line

The steel wire surface treatment method of the present invention is a method for continuously treating the surface of a steel wire and includes: a descaling step p2 in which scale adhering to the surface of a steel wire is removed by subjecting the surface of the steel wire to wet blasting; a coating film treatment step p5 in which a coating film is formed on the surface of the steel wire after completion of the descaling step p2; and a water amount controlling step p3 in which the water amount on the surface of the steel wire immediately before performing the coating film treatment step p5 is adjusted to a prescribed water amount.. . ... Kabushiki Kaisha Kobe Seiko Sho

02/15/18 / #provided is a setting assistance device capable of informing that which welding condition should be corrected with a value as the limit in order to achieve the target quality.

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

02/15/18 / #20180047996

Titanium plate, plate for heat exchanger, and separator for fuel cell

A titanium plate that have both excellent strength and formability, and a plate for a heat exchanger and a separator for a fuel cell, which are made using the titanium plate, are provided. The titanium plate includes fe and o, with the balance being titanium and inevitable impurities, wherein the titanium plate includes an α-phase crystal grain microstructure having a hexagonal close packed structure, and when crystal orientations of the α-phase crystal grains are represented by a crystallite orientation distribution function, the α-phase crystal grain microstructure of the titanium plate satisfies certain conditions.. ... Kabushiki Kaisha Kobe Seiko Sho

02/15/18 / #20180045592

Residual stress estimation method and residual stress estimation device

Provided is a residual stress estimation method and a residual stress estimation device capable of suppressing the number of cut pieces to be collected for measuring inherent strain without deteriorating residual stress estimation accuracy. In a case where it is assumed that the inherent strain is uniformly distributed in one direction in a structure, a user measures residual stress from a cut piece collected in a region in which the inherent strain is uniformly distributed and inputs the measured value to the residual stress estimation device. ... Kabushiki Kaisha Kobe Seiko Sho

02/15/18 / #20180044807

Electrically conductive material for connection component

Disclosed herein is an electrically conductive material including a base material made of a copper alloy sheet strip, a cu—sn alloy coating layer and a reflow sn coating layer, wherein the cu—sn alloy coating layer and the reflow sn coating layer are arranged on a surface of the base material in this order from a side of the base material, parts of the cu—sn alloy coating layer are exposed on a surface, a coefficient of friction in each of a direction perpendicular to and a direction inclined by 45° to a rolling direction of the copper alloy base material is reduced, compared to that in the rolling direction of the copper alloy base material.. . ... Kabushiki Kaisha Kobe Seiko Sho

02/15/18 / #20180044763

Alpha-ß titanium alloy

To provide an α-β titanium alloy that has high strength and excellent hot workability of the level of the α-β titanium alloy, typified by the ti-6al-4v, while exhibiting more excellent machinability than the ti-6al-4v. The α-β titanium alloy includes, in percent by mass: at least one element of 0.1 to 2.0% of cu and 0.1 to 2.0% of ni; 2.0 to 8.5% of al; 0.08 to 0.25% of c; and 1.0 to 7.0% in total of at least one element of 0 to 4.5% of cr and 0 to 2.5% of fe, with the balance being ti and inevitable impurities.. ... Kabushiki Kaisha Kobe Seiko Sho

02/15/18 / #20180044752

High-strength cold-rolled steel sheet having excellent formability and collision characteristics and having tensile strength of 980 mpa or more, and method for producing same

Disclosed herein is a high-strength cold-rolled steel sheet, in which the metal structure at a position of ¼ of the sheet thickness satisfies (1) to (4): (1) an area ratio of ferrite is more than 10% to 65% or less, with a balance being a hard phase including quenched martensite and retained austenite and including at least one selected from the group consisting of bainitic ferrite, bainite, and tempered martensite; (2) a volume ratio vγ of retained austenite is 5% to 30%; (3) an area ratio vma of an ma structure in which quenched martensite and retained austenite are combined is 3% to 25%, and an average circle-equivalent diameter of the ma structure is 2.0 μm or less; and (4) a ratio vma/vγ of the area ratio vma of the ma structure to the volume ratio vγ of the retained austenite is 0.50 to 1.50.. . ... Kabushiki Kaisha Kobe Seiko Sho

02/15/18 / #20180044603

Method for manufacturing ashless coal

A method for producing an ash-free coal includes a step of mixing a coal with a solvent to prepare a slurry; a step of dissolving away a coal component soluble in the solvent, from the coal, by heating the slurry; a step of separating the solution containing the coal component dissolved therein from the slurry after the dissolution; and a step of subjecting the solution separated in the separation step to a vaporization and a separation of the solvent to obtain an ash-free coal. The separation step and the dissolution step are simultaneously performed.. ... Kabushiki Kaisha Kobe Seiko Sho

02/15/18 / #20180043408

Method and device for descaling metal wire

Provided are a method and a device for descaling that make it possible to effectively remove oxide scale from the surface of a metal wire. The descaling includes spraying the surface of a metal wire (w) with a mixture (9) of water and hard particles from a plurality of nozzles (8). ... Kabushiki Kaisha Kobe Seiko Sho

02/08/18 / #20180038750

Residual stress estimation method and residual stress estimation device

Provided are a residual stress estimation method and a residual stress estimation device capable of estimating residual stress suitable for a structure in which inherent strain occupied mainly by plastic strain occurs. A constraint condition is introduced to a distribution function used in the residual stress estimation method based on an inherent strain method, the constraint condition being that a plastic-worked structure does not undergo volume change before and after working. ... Kabushiki Kaisha Kobe Seiko Sho

02/08/18 / #20180037964

High-strength cold-rolled steel sheet having excellent formability and collision characteristics and having tensile strength of 980 mpa or more, and method for producing same

A high-strength cold-rolled steel sheet, in which the metal structure at a position of ¼ of the sheet thickness satisfies (1) to (4) below. (1) the area ratio of ferrite is 0% or more and 10% or less, with the balance being a hard phase including quenched martensite and retained austenite and including at least one selected from the group consisting of bainitic ferrite, bainite, and tempered martensite. ... Kabushiki Kaisha Kobe Seiko Sho

02/01/18 / #20180029102

Steel sheet for hot pressing and method for producing same

A steel sheet for hot pressing which contains, in mass %, c: 0.15% or more to 0.40% or less, si: 1.00% or more to 2.00% or less, mn: 1.50% or more to 3.00% or less, ti: (n×48/14)% or more to 0.10% or less, b: 0.0005% or more to 0.0050% or less, al: more than 0% to 0.10% or less, p: more than 0% to 0.05% or less, s: more than 0% to 0.01% or less, n: more than 0% to 0.010% or less, iron and inevitable impurities. This steel sheet for hot pressing is also characterized by having a dislocation density of 10×1014/m2 or more, an area ratio of pearlite relative to the whole structure being 30% or more, and a tensile strength of 1100 mpa or less.. ... Kabushiki Kaisha Kobe Seiko Sho

01/25/18 / #20180025714

Sound deadening device

A sound deadening device has an introducing and damping section. The introducing and damping section includes an introduction section that introduces fluid, an expansion chamber, and a lead-out section. ... Kabushiki Kaisha Kobe Seiko Sho

01/25/18 / #20180024827

Control means, in-vehicle program rewriting device equipped with same, and in-vehicle program rewriting method

A controller includes a communication controller having a communication area and a normal control controller having a normal control area, and is provided in a vehicle. The controller stores an update program, which is transferred via an external communication mechanism from an external server to a vehicle, in the communication controller. ... Kabushiki Kaisha Kobe Seiko Sho

01/25/18 / #20180024027

Tire testing rim

A rim for tire testing includes a rim body that is rotatably provided in a tire testing device so that a tire to be tested can be attached to the rim body, and a filling unit that can fill the tire to be attached to the rim body with a gas at a predetermined pressure. The rim body can be divided into a plurality of members in a direction along a rotational axis of the rim body. ... Kabushiki Kaisha Kobe Seiko Sho

01/25/18 / #20180023764

Gas filling system

A gas delivery system including: a feeder for feeding a gas to a tank; a pressure storage container unit which has a plurality of pressure storage containers, and sends out the gas to the feeder; a gas supply unit; and a controller. The controller implements a storing operation that a specified pressure storage among the plurality of pressure storage containers is supplied with the gas until a pressure of the specified pressure storage container reaches a reference pressure or greater, after finish of a delivery of the gas to one tank carrier, and a sending operation that the gas is sent out from another pressure storage container except the specified pressure storage container to the feeder, and then sent out from the specified pressure storage container to the feeder on a receipt of a shift indication from the feeder, at a delivery of the gas to a subsequent tank carrier.. ... Kabushiki Kaisha Kobe Seiko Sho

01/25/18 / #20180023174

Aluminum alloy sheet

A 7xxx-series aluminum alloy sheet produced by a common procedure is allowed to include a surface part having a texture with grown cube orientation, and a central part having a texture with grown s orientation. Namely, the surface part and the thickness-central part in the sheet are allowed to have different textures that are optimal respectively for shock absorption and for strength. ... Kabushiki Kaisha Kobe Seiko Sho

01/25/18 / #20180022067

Aluminum-alloy-clad plate and aluminum-alloy-clad structural member

An aluminum-alloy-clad plate which includes a plurality of superposed aluminum alloy layers and which has undergone a diffusion heat treatment. Aluminum alloy layers having specific compositions are superposed so that any adjoining two of these differ in the content of mg or zn, and are subjected to a diffusion heat treatment to give a structure which has fine crystal grain diameters and mg/zn mutual diffusion regions and which has specific dsc properties. ... Kabushiki Kaisha Kobe Seiko Sho

01/25/18 / #20180021893

Brazing filler material and brazing sheet

The present invention provides a brazing filler material in which the formation of coarse si particles is suppressed, and a brazing sheet using the same. The brazing filler material includes si: 3.5% by mass or more and 13.0% by mass or less, ti: 0.001% by mass or more and 0.05% by mass or less, v: more than 0.0005% by mass and 0.05% by mass or less, and b: 0.001% by mass or less (excluding 0% by mass), with the balance being al and inevitable impurities, and the value of v/ti, which is a value obtained by dividing the v content (% by mass) by the ti content (% by mass) is 0.05 or more and 5 or less.. ... Kabushiki Kaisha Kobe Seiko Sho

01/18/18 / #20180017326

Reduced iron production method and device

A method and a device for charging a plurality of reduced iron raw materials into a traveling hearth reduction-melting furnace and treating the raw materials, allowing sufficient input of heat to the reduced iron raw materials on a hearth covering material to improve treatment efficiency are provided. The reduced iron raw materials are released downward from the lower surface of a ceiling of the reduction-melting furnace to be set on a hearth covering material on a hearth and reduced on the hearth covering material. ... Kabushiki Kaisha Kobe Seiko Sho

01/18/18 / #20180016653

Steel material for bearings that has excellent rolling fatigue characteristics, and bearing part

This steel material for bearings includes prescribed components in the steel, the oxide inclusions in the steel that have a minor axis of 1 μm or greater satisfying the following conditions (1) and (2). (1) the average composition contains specific respective amounts of cao, al2o3, sio2, and tio2, and cao+al2o3+sio2+tio2≧60%. ... Kabushiki Kaisha Kobe Seiko Sho

01/18/18 / #20180015575

Submerged arc welding process

A submerged arc welding process using welding wire containing, based on the total mass of the welding wire, ni: 50% or more by mass, cr: 14.5% to 16.5% by mass, mo: 15.0% to 17.0% by mass, w: 3.0% to 4.5% by mass, fe: 4.0% to 7.0% by mass, and c, si, mn, p, s, cu, v, co, and al: a predetermined amount or less, and a bonded flux containing, based on the total mass of the bonded flux, al2o3: 35% to 55% by mass, sio2: 5% to 25% by mass, cao: 2% to 10% by mass, caf2: 25% to 45% by mass, and na2o: 2% to 4% by mass.. . ... Kabushiki Kaisha Kobe Seiko Sho

01/18/18 / #20180015561

Welding device and welding method

A welding system includes a welding torch that welds a workpiece by using a wire, a suction device that sucks shielding gas, and a sucked shielding gas supply path for allowing the sucked shielding gas to flow, wherein the welding torch includes a contact chip that guides the wire, a shielding gas supply nozzle that supplies the shielding gas to a weld zone, and a suction nozzle that surrounds a periphery of the wire protruding from the contact chip, and is opened toward a tip of the wire to suck the shielding gas.. . ... Kabushiki Kaisha Kobe Seiko Sho

01/18/18 / #20180015534

Continuous casting device for slab comprising titanium or titanium alloy

In the present invention the torch movement period is 20-40 seconds, with the torch movement period being the time required to move plasma torches (which heat the surface of molten metal in the casting mold) one time. The average heat input amount at multiple sites, which are obtained by dividing the initial solidification portion (which is where the molten metal makes contact with the casting mold and first solidifies) into multiple sites in the circumferential direction of the casting mold, is 1.0-2.0 mw/m2. ... Kabushiki Kaisha Kobe Seiko Sho

01/18/18 / #20180015527

Method for joining members

In the present invention, a method for joining members involves preparing a steel component having a bottom wall in which a hole is provided, and a hollow aluminum pipe. The aluminum pipe is slipped through the hole in the steel component and passed through the bottom wall, rubber is inserted into the interior of the aluminum pipe, and the rubber is compressed in the direction of the axis (l) of the aluminum pipe and induced to distend towards the outside from the inside. ... Kabushiki Kaisha Kobe Seiko Sho

01/11/18 / #20180012183

Human resource development support system

A human resource development support system calculates, for each agent, a profitability indicator value that is a value of an indicator of profitability of the agent, on the basis of order histories for customers regarding industrial machinery at the agent, and sets a target agent for each agent on the basis of the profitability indicator value. Then, the human resource development support system identifies, for each agent, a grade of service personnel for which an investment in human resource development is to be made, on the basis of constitution information indicating the numbers of service personnel belonging to the target agent for individual grades, and then calculates, for each agent, an investment effect indicator value that is a value of an indicator of an investment effect obtained when an investment in human resource development is made for the identified grade, on the basis of the calculated profitability indicator value.. ... Kabushiki Kaisha Kobe Seiko Sho

01/11/18 / #20180012162

Human resource development support system

A human resource development support system calculates, for each agent, a profitability indicator value that is a value of an indicator of profitability of the agent on the basis of order histories for customers regarding industrial machinery at the agent. Then, the human resource development support system generates, for each agent, reference information capable of identifying a grade of service personnel for which human resource development is to be strengthened, on the basis of the calculated profitability indicator value and on the basis of constitution information indicating the numbers of service personnel belonging to the agent for individual grades.. ... Kabushiki Kaisha Kobe Seiko Sho

01/11/18 / #20180010227

High-strength plated steel sheet having excellent plating properties, workability, and delayed fracture resistance, and method for producing same

Disclosed herein is a high-strength plated steel sheet having a plated layer on the surface of a base steel sheet and containing predetermined steel components. The steel sheet includes, in the order from the interface of the base steel sheet and the plated layer towards the base steel sheet: a soft layer having a vickers hardness that is 90% or less of the vickers hardness at a portion t/4 of the base steel sheet, where t is a sheet thickness of the base steel sheet; and a hard layer consisting of a structure which is mainly composed of martensite and bainite and in which the average grain size of prior austenite is 20 μm or less. ... Kabushiki Kaisha Kobe Seiko Sho

01/11/18 / #20180010226

High-strength plated steel sheet having excellent plating properties, workability, and delayed fracture resistance, and method for producing same

The high-strength plated steel sheet of the present invention has a plated layer on the surface of a base steel sheet and contains predetermined steel components. The steel sheet includes, in the order from the interface of the base steel sheet and the plated layer towards the base steel sheet: a soft layer having a vickers hardness that is 90% or less of the vickers hardness at a portion t/4 of the base steel sheet, where t is a sheet thickness of the base steel sheet: and a hard layer containing martensite, bainite, and ferrite in predetermined ranges. ... Kabushiki Kaisha Kobe Seiko Sho

01/11/18 / #20180010207

High-strength plated steel sheet and method for producing same

Disclosed herein is a high-strength plated steel sheet containing an internal oxidized layer, a soft layer including the internal oxidized layer, and a hard layer including a structure having metallic structure containing a low-temperature-transformation produced phase in a proportion of 70% or more by area of the whole of the metallic structure, in which polygonal ferrite is in a proportion of 0% or more by area, and 10% or less by area of the same, and retained austenite is in a proportion of 5% or more by volume of the same. The high-strength plated steel sheet satisfies the average depth d of the soft layer is 20 μm or more, the average depth d of the internal oxidized layer is 4 μm or more and less than d, and a tensile strength of 980 mpa or more.. ... Kabushiki Kaisha Kobe Seiko Sho

01/11/18 / #20180009039

Hard coating film

A hard film formed on/above a substrate has a composition represented by the following formula (1): cr1−amga(bxcyn1−x−y) (1). In the formula (1), a is the atomic ratio of mg, x is the atomic ratio of b, and y is the atomic ratio of c; and a, x, and y satisfy the following relationships: 0.05≦a≦0.30, 0≦x≦0.20, and 0≦y≦0.30.. ... Kabushiki Kaisha Kobe Seiko Sho

01/04/18 / #20180003220

Tilting pad journal bearing

On a facing surface (12a) of a pad (12) that faces a rotation shaft, an oil supply unit (24) is provided in an end region downstream of the rotation shaft in the rotation direction, and the oil supply unit (24) is formed along part of an isopleth of the pressure distribution on the facing surface (12a) generated by a lubricant being caught between the rotation shaft and the facing surface (12a), said part of the isopleth being downstream, in the rotation direction, of the pressure maximum of the pressure distribution.. . ... Kabushiki Kaisha Kobe Seiko Sho

01/04/18 / #20180002799

High-strength plated steel sheet and method for producing same

A high-strength plated steel sheet sequentially includes an internal oxidized layer, a soft layer containing the internal oxidized layer, and a hard layer including a structure having metallic structure which contains a low-temperature-transformation produced phase in a proportion of 20 to 85% by area of the whole of the metallic structure, polygonal ferrite in a proportion more than 10% by area, and 70% or less by area of the whole of the metallic structure, and-retained austenite in a proportion of 5% or more by volume of the whole of the metallic structure. The high-strength plated steel sheet satisfies the average depth d of the soft layer being 20 μm or more, the average depth d of the internal oxidized layer being 4 μm or more and less than d, and a tensile strength being 980 mpa or more.. ... Kabushiki Kaisha Kobe Seiko Sho

01/04/18 / #20180001596

Aluminum-alloy-clad plate and aluminum-alloy-clad structural member

An aluminum-alloy-clad plate in which a plurality of aluminum alloy layers are layered and diffusion heat treatment is performed thereon, wherein aluminum alloy layers having a specific composition are layered so as to each have a different content mg or zn, the structure of the aluminum alloy clad plate after diffusion heat treatment thereof has a minute crystal grain diameter and a predetermined amount of a specific mg and zn inter-diffusion region in which mg and zn of layered aluminum alloy layers are diffused with each other, and increased strength and high moldability are obtained at the same time.. . ... Kabushiki Kaisha Kobe Seiko Sho

01/04/18 / #20180001525

Joining structure

A joining structure includes a first member, a second member of a material different from that of the first member, and a separation mechanism provided between the first member and the second member and that separates the first member and the second member from each other, wherein a resin is filled into the space between the edge of at least one member among the first member and the second member, and the other member.. . ... Kabushiki Kaisha Kobe Seiko Sho

01/04/18 / #20180001411

Welding condition generating method in flat position welding

A welding condition generating method in flat position welding is a method for determining welding conditions for welding in a single v groove, a single bevel groove, or a fillet groove in a flat position using a welding robot. The method includes preparing conditions a and b, each including a plurality of different parameters used in calculation for determining the welding conditions; and generating the welding conditions by combining parameters included in the conditions a and b. ... Kabushiki Kaisha Kobe Seiko Sho

12/28/17 / #20170369965

High-strength plated steel sheet having excellent plating properties, workability, and delayed fracture resistance, and method for producing same

A high-strength plated steel sheet has a plated layer on the surface of a base steel sheet and contains predetermined steel components. The steel sheet includes, in the order from the interface of the base steel sheet and the plated layer towards the base steel sheet: a soft layer having a vickers hardness that is 90% or less of the vickers hardness at a portion t/4 of the base steel sheet, where t is a sheet thickness of the base steel sheet; and a hard layer containing martensite and bainite, and ferrite in predetermined ranges. ... Kabushiki Kaisha Kobe Seiko Sho

12/14/17 / #20170356070

Maraging steel

Disclosed is a mar aging steel containing, in combination in mass percent, c in a content from greater than 0% to 0.02%, mn in a content from greater than 0% to 0.3%, si in a content from greater than 0% to 0.3%, ni in a content of 10% to 13%, mo in a content of 0.5% to 3.5%, co in a content of 9% to 12%, cr in a content of 1.5% to 4.5%, ti in a content of 1.5% to 4.5%, and al in a content of 0.01% to 0.2%, where the total content of mo and ti is 5.0 mass percent or less, and the ratio ([mo]/[ti]) of the mo content [mo] to the ti content [ti] is 1.0 or less, with the remainder consisting of iron and inevitable impurities.. . ... Kabushiki Kaisha Kobe Seiko Sho

12/14/17 / #20170355044

Flux-cored wire and method for manufacturing welded joint

Provided is a flux-cored wire which can be mig-welded at any welding position using a pure ar gas as a shielding gas. A flux-cored wire having a flux filled in the outer skin thereof, wherein tio2, al2o3, sio2 and zro2 are contained in amounts of 4.7 to 8.5% by mass, 0.5 to 3.5% by mass, 0.5 to 2.0% by mass and 0.8 to 3.0% by mass, respectively, and metal oxides are also contained in the total amount of 8.0 to 13.5% by mass all relative to the total mass of the wire, and the amount of a metal fluoride is limited to 0.02% by mass or less (including 0% by mass).. ... Kabushiki Kaisha Kobe Seiko Sho

12/07/17 / #20170349979

Aluminum alloy sheet

The present invention pertains to an al—mg—si-based aluminum alloy plate comprising, by mass, 0.20-1.50% of mg, 0.30-2.00% of si, and 0.005-0.500% of sn, the balance being al and unavoidable impurities, wherein the aluminum alloy plate is characterized in having a structure in which, from among all crystallized substances having a circle-equivalent diameter within the range of 0.3-20 μm as measured using a 500×-magnification sem, crystallized substances containing sn identified by an x-ray spectrometer have an average number density in the range of 10 per mm2 to 2,000 per mm2, the proportion of the aforementioned average number density of the crystallized substances containing sn in relation to the average number density of all crystallized substances having the circle-equivalent diameter being within the range of 0.3-20 μm is 70% or above. With this aluminum alloy plate, it is possible to improve filiform corrosion resistance without inhibiting moldability or bh properties after room-temperature aging.. ... Kabushiki Kaisha Kobe Seiko Sho

12/07/17 / #20170349978

Aluminum alloy sheet

The present invention relates to an al—mg—si sheet which contains, in terms of mass %, 0.3-1.0% mg, 0.5-1.5% si, 0.005-0.2% sn, 0.02-1.0% fe, and 0.02-0.6% mn, with the remainder comprising al and unavoidable impurities, characterized by having a structure wherein compounds that are detected with an sem having a magnification of 500 diameters and are identified with an x-ray spectrometer include sn compounds which contain mn and fe and which have an sn content of 1.0 mass % or higher and a diameter of 0.3-20 μm in terms of equivalent circular diameter, the average number density of the sn compounds being 500-3,000 /mm2, and wherein the length of the boundary between each sn compound and the aluminum matrix is in the range of 3-20/mm on average in terms of value obtained by dividing the total peripheral length of the sn compound grain by the area thereof determined with the sem. This aluminum alloy sheet satisfies the formability after natural aging at room temperature and bake hardenability which are required of automotive outer panels, and has excellent filiform rust resistance.. ... Kabushiki Kaisha Kobe Seiko Sho

11/23/17 / #to provide a method for producing a solid fuel that can efficiently evaporate moisture contained in a slurry by enhancing heat exchange efficiency.

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

11/23/17 / #20170335431

Method for deoxidizing ai-nb-ti alloy

Disclosed herein is a method for deoxidizing an al—nb—ti alloy, which includes melting and holding an al—nb—ti alloy containing from 50 to 75 mass % of al, from 5 to 30 mass % of nb, and 80 mass % or less in total of al and nb by a melting method using a water-cooled copper vessel in an atmosphere of 1.33 pa to 2.67×105 pa at a temperature of 1,900 k or more, thereby decreasing an oxygen content thereof. The al—nb—ti alloy is prepared using an alloy material formed of an aluminum material, a niobium material and a titanium material and containing oxygen in a total amount of 0.5 mass % or more.. ... Kabushiki Kaisha Kobe Seiko Sho

11/23/17 / #20170335423

High strength high ductility steel plate

In the present invention, a steel plate contains specific alloy components, has a steel structure that contains specific proportions of retained austenite and ferrite, with the remainder comprising one or more types selected from among bainite, martensite, tempered bainite and tempered martensite, and has a specific average carbon concentration and carbon concentration distribution in the retained austenite.. . ... Kabushiki Kaisha Kobe Seiko Sho

11/23/17 / #20170334171

Aluminum alloy material, bonded body, member for automobiles, and method for producing aluminum alloy material

An aluminum alloy material is provided. The aluminum alloy material has excellent bonding durability and is not susceptible to decrease in the bonding strength even if exposed to a high-temperature humid environment. ... Kabushiki Kaisha Kobe Seiko Sho

11/23/17 / #20170334117

Pelletizer apparatus

This pelletizer apparatus includes an observation unit for observing, from the outside of a housing chamber, a cut section of a synthetic resin cut by cutting teeth inside the housing chamber. The observation unit includes an optical system which sends an optical image of the cut section from the inside of the housing chamber to the outside of the housing chamber. ... Kabushiki Kaisha Kobe Seiko Sho

11/16/17 / #[object] to enable a gas supply system to be easily transported and to increase a degree of freedom when the gas supply system is installed.

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

11/16/17 / #20170330643

Ag alloy film for reflecting electrode or wiring electrode, reflecting electrode or wiring electrode, and ag alloy sputtering target

An ag alloy film used for a reflecting electrode or an interconnection electrode, the ag alloy film exhibiting low electrical resistivity and high reflectivity and having exceptional oxidation resistance under cleaning treatments such as an o2 plasma treatment or uv irradiation, wherein the ag alloy film contains either in in an amount of larger than 2.0 atomic % to 2.7 atomic % or smaller; or zn in an amount of larger than 2.0 atomic % to 3.5 atomic % or smaller; or both. The ag alloy film may further contain bi in an amount of 0.01 to 1.0 atomic %.. ... Kabushiki Kaisha Kobe Seiko Sho

11/16/17 / #20170326624

Buoyancy transfer jig

The buoyancy transfer jig includes: a rod-shaped rod portion which is disposed extending from an outside of a pattern to an inside of a hollow portion by way of an opening portion which is formed in a foamed mold and makes the outside of the pattern and the hollow portion connected with each other, and is disposed in self hardening sand filled in the hollow portion and the opening portion; and a plate-shaped blade portion which is formed continuously with the rod portion and is disposed in the casting sand.. . ... Kabushiki Kaisha Kobe Seiko Sho

10/26/17 / #an oil-free screw compressor includes: a casing having a rotor chamber; a bearing supporting rotary shafts of the screw rotors; a shaft seal device including an oil seal portion and an air seal portion; an atmosphere open hole formed in the shaft seal device; at least one communication hole formed in the rotary shaft; and an annular space communicating the atmosphere open hole with the at least one communication hole communicate with each other. the annular space includes an inner peripheral annular space formed on an inner peripheral side of the casing. assuming an open cross-sectional area of the inner peripheral annular space as s1, a total open cross-sectional area of the communication holes as s2, an open cross-sectional area of the i-th communication hole out of the communication holes as s2i, and the number of communication holes as n (n being a natural number of 1 or more), a following relationship is satisfied.

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

10/26/17 / #20170310177

Interior magnet rotary electric machine

This interior magnet rotary electric machine (1) is provided with: a rotor (2) that has a rotor core (11) having permanent magnets (12, 13) embedded therein; a stator (3) that is disposed facing the rotor (2); and a fiber-reinforced plastic tube (4) that is fitted over and fixed to the rotor core (11).. . ... Kabushiki Kaisha Kobe Seiko Sho

10/26/17 / #20170306958

Oil-free screw compressor

An oil-free screw compressor has a screw rotor including a screw and a shaft, a bearing supporting the shaft, a first shaft seal device disposed between the screw and the bearing and including a first seal opposite to the shaft, and a first communication portion communicating the bearing side with respect to between the shaft and the first seal and the outer peripheral face of the first shaft seal device, and a second shaft seal device disposed between the first shaft seal device and the bearing and including a second seal opposite to the shaft, and a second communication portion communicating the screw side with respect to between the shaft and the second seal and the outer peripheral face of the second shaft seal device. A casing includes an atmosphere communication portion connected to both of the first communication portion and the second communication portion on the inner peripheral face of a shaft accommodation space, and communicating the first communication portion and the second communication portion with the atmosphere.. ... Kabushiki Kaisha Kobe Seiko Sho

10/26/17 / #20170304893

Lubricant, mixed powder for powder metallurgy, and method for producing sintered body

One aspect of the present invention is a lubricant to be incorporated into a powder metallurgical mixed powder containing an iron-based powder. The lubricant includes a flaky organic material having an average particle diameter of from 0.1 μm to less than 3 μm. ... Kabushiki Kaisha Kobe Seiko Sho

10/12/17 / #20170291211

Laminated hard coating and molding die

A laminated hard film is obtained by laminating a layer a and a layer b. The layer a has a composition different from that of the layer b. ... Kabushiki Kaisha Kobe Seiko Sho

10/05/17 / #the oil-free screw compressor includes: a casing having a rotor chamber; a bearing supporting rotary shafts of screw rotors; a shaft seal device with an oil seal portion and an air seal portion; a ventilation gap positioned between the oil seal portion and the air seal portion; and an atmosphere open passage communicating an atmosphere side of the casing with the ventilation gap communicate. a most narrowed portion, an air seal portion, and oil seal portions are set such that the followings is established:

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

10/05/17 / #20170284900

Method for estimating load model in tire uniformity tester

A tire uniformity testing apparatus (1) measures uniformity of a tire (t) by measuring a load generated on the tire (t) pressed against a rotating rotary drum (2). A load model used to control a pressing position of the rotary drum (2) and express a relation between the pressing position of the tire (t) against the rotary drum (2) and a tire load generated in the tire (t) is configured to successively measure the tire load, while changing the pressing position of the tire (t) against the rotary drum (2), and to estimate the tire load using the measured value of the measured tire load.. ... Kabushiki Kaisha Kobe Seiko Sho

10/05/17 / #20170284336

Container-type compressed air storage power generation device

A container-type compressed air storage power generation device (2) comprises compressors (5a-5c); a tank (8); power generators (9a-9c); a control device (12); and a container (4). The compressors (5a-5c) compress air. ... Kabushiki Kaisha Kobe Seiko Sho

10/05/17 / #20170283913

Aluminum alloy sheet having high formability

Provided is a 6xxx-series aluminum sheet having high formability for automotive body panel use, which can be produced without significant changes in conventional chemical compositions and production conditions. The 6xxx-series aluminum alloy sheet is controlled in its microstructure as follows. ... Kabushiki Kaisha Kobe Seiko Sho

10/05/17 / #20170283910

Conductive material for connection parts which has excellent minute slide wear resistance

A conductive material for connection parts includes a matrix, a cu—sn alloy covering layer having a cu content of 20 to 70 at % and an average thickness of from 0.2 to 3.0 μm, and a sn covering layer having an average thickness of from 0.05 to 5.0 μm. The matrix is a copper alloy strip containing specified amounts of cr and zr or specified amounts of fe and p, or a cu—zn alloy strip containing a specified amount of zn. ... Kabushiki Kaisha Kobe Seiko Sho

10/05/17 / #20170283906

Method for deoxidizing ti-al alloy

A method for deoxidizing a ti—al alloy includes melting and holding a ti—al alloy containing 40 mass % or more of al by a melting method using a water-cooled copper vessel in an atmosphere of 1.33 pa or more, thereby decreasing an oxygen content in the ti—al alloy. The ti—al alloy is manufactured using an alloy material composed of a titanium material and an aluminum material. ... Kabushiki Kaisha Kobe Seiko Sho

10/05/17 / #20170283905

Method for producing granular metallic iron

A method for producing granular metallic iron of the present invention includes: an agglomeration step of obtaining agglomerates through agglomeration of a mixture that contains an iron oxide-containing material and a carbonaceous reducing agent; and a granulation step of obtaining granular metallic iron by heating the agglomerates, reducing iron oxides in the agglomerates, aggregating generated metallic iron to be granular while separating the metallic iron from slag generated as a by-product, and thereafter cooling and solidifying the metallic iron, wherein agglomerates satisfying all the conditions given by formulas (1) to (3) below are used as the agglomerates: (1) [(total cao amount+total sio2 amount+total al2o3 amount)/total fe amount]≧0.250; (2) (total cao amount/total sio2 amount)≧0.9; (3) [total al2o3 amount/(total cao amount+total sio2 amount+total al2o3 amount)]×100≧9.7. In the formulas, the total cao amount, the total sio2 amount, the total al2o3 amount and the total fe amount respectively represent the mass percentage of cao, the mass percentage of sio2, the mass percentage of al2o3 and the mass percentage of fe contained in the agglomerates.. ... Kabushiki Kaisha Kobe Seiko Sho

10/05/17 / #20170282978

Vehicle hood

Provided is a vehicle hood that allows a reduction in thickness of an outer panel while providing stiffness of the outer panel. A vehicle hood includes an outer panel, an inner panel, and a plurality of adhesive components. ... Kabushiki Kaisha Kobe Seiko Sho

10/05/17 / #20170282977

Vehicle hood

Provided is a vehicle hood capable of improving pedestrian protection performance by suppressing an increase in acceleration secondary peak while increasing an acceleration primary peak. A vehicle hood includes an outer panel, an inner panel, and a deformable part that deforms with the outer panel when the outer panel deforms toward the inner panel, in which the inner panel includes a bottom, an upright wall, and an opposed part, and the deformable part includes a joint part joined to an intermediate wall of the upright wall or the opposed part, and a displaceable part that is close to or in contact with the outer panel above the bottom and is capable of being downward displaced with the outer panel to below the joint part when the outer panel deforms toward the inner panel.. ... Kabushiki Kaisha Kobe Seiko Sho

10/05/17 / #20170282240

Method for continuously casting slab containing titanium or titanium alloy

The present invention provides a method for casting a slab having a good cast surface. The method includes heating the surface of molten metal on a metal inlet side of a mold by a first heat source so that the following formulas: q≧0.87 and c≦11.762q+0.3095 are satisfied where c is a cycle time [sec] of turning movement of the first heat source, and q is an average amount of heat input [mw/m2] determined by accumulating an amount of heat input applied by at least the first heat source to the contact region between the upper surface of the slab on the metal inlet side and the mold, along the path of turning movement of the first heat source, and dividing the resultant accumulated value by the cycle time c.. ... Kabushiki Kaisha Kobe Seiko Sho

09/28/17 / #20170275738

Aluminum alloy material and bonded object, and automotive member

An al—mg—si aluminum alloy material includes sn. An oxide film formed on a surface of the aluminum alloy material is analyzed by a semi-quantitative analysis by x-ray photoelectron spectroscopy. ... Kabushiki Kaisha Kobe Seiko Sho

09/28/17 / #20170275718

High-strength steel sheet

Provided is a steel sheet with excellent abrasion resistance as well as excellent low-temperature toughness and ductility of a base material while having a high strength of a tensile strength of 1,100 mpa or more. The steel sheet is a high-strength steel sheet having a tensile strength of 1,100 mpa or more, wherein the components in the steel satisfy a defined composition, a-value represented by a defined formula (1) is 0.0015 or less, while e-value represented by a defined formula (3) is 0.95 or more, and a brinell hardness hbw (10/3000) in a position at a depth of 2 mm from a surface of the steel sheet is 360 or more and 440 or less.. ... Kabushiki Kaisha Kobe Seiko Sho

09/28/17 / #20170275547

Method for manufacturing ashless coal

The present invention is provided with a step for preheating coal, a step for heating an extraction solvent, a step for mixing the preheated coal and the extraction solvent heated to a higher temperature than the preheated coal and thereby heating the coal, a step for separating a solution in which a coal component is dissolved from the mixture of the coal and the extraction solvent, and a step for evaporating and separating the extraction solvent from the solution.. . ... Kabushiki Kaisha Kobe Seiko Sho

09/28/17 / #20170274527

Apparatus for helping setting of welding conditions in multi-pass welding

When setting welding conditions of arc welding, an operator sets the shape of a material to be welded, the specifications of welding, and welding conditions using a teach pendant. An apparatus for supporting setting of welding conditions in multi-pass welding of the present invention automatically calculates the state of the bead layering cross-section including at least one of the number of bead layers, the number of passes, and the layering direction, and the state of the bead layering cross-section including at least one of the number of bead layers, the number of passes, and the layering direction, obtained by the calculation is displayed on a display section.. ... Kabushiki Kaisha Kobe Seiko Sho

09/28/17 / #20170274482

Flux-cored wire for gas-shielded arc welding

A flux cored wire, which is obtained by filling the inside of a steel outer skin with a flux, is configured to have a composition that contains, in mass % relative to the total mass of the wire, 0.01-0.12% of c, 0.05% or more but less than 0.30% of si, 1.0-3.5% of mn, 0.1% or more but less than 1.0% of ni, 0.10-0.30% of mo, 0.1-0.9% of cr, 4.5-8.5% of tio2, 0.10-0.40% of sio2, 0.03-0.23% of al2o3 and 80% or more of fe.. . ... Kabushiki Kaisha Kobe Seiko Sho

09/28/17 / #20170274479

Flux-cored wire for different-material bonding and method of bonding different materials

There are provided a flux cored wire for joining dissimilar materials with each other, capable of enhancing a bonding strength upon joining an aluminum-base material with a steel-base material, and excellent in bonding efficiency, a method for joining the dissimilar materials with each other, and a bonded joint obtained by the method. In particular, there is provided a method for joining dissimilar materials with each other, in the case of melt weld-bonding of high-strength dissimilar materials with each other, that is, the high-strength steel member with the high-strength 6000 series aluminum alloy member and in the case of the steel member being a galvanized steel member. ... Kabushiki Kaisha Kobe Seiko Sho

09/21/17 / #20170271567

Copper alloy plate strip for use in led lead frame

A copper alloy sheet or strip for a lead frame of led includes specific amounts of fe, p, zn, and sn with the remainder being cu and unavoidable impurities. A surface roughness thereof is less than 0.06 μm in terms of arithmetic average roughness ra and is less than 0.5 μm in terms of ten-point average roughness rzjis. ... Kabushiki Kaisha Kobe Seiko Sho

09/21/17 / #20170268826

Stacked type fluid heater and method of heating fluid with stacked type fluid heater

A stacked type fluid heater includes a first low temperature layer with low temperature side flow passages into which target medium to be heated is introduced, a first high temperature layer with high temperature side flow passages into which heating medium for heating the target medium to be heated is introduced, a second high temperature layer with high temperature side flow passages into which the heating medium is introduced. The target medium has a temperature lower than the freezing point of the heating medium. ... Kabushiki Kaisha Kobe Seiko Sho

09/21/17 / #20170268083

High-strength steel for steel forgings, and steel forging

The high-strength steel for steel forgings according to the present invention has a composition that includes, as basic components, c: 0.35 mass % to 0.47 mass %; si: 0 mass % to 0.4 mass %; mn: 0.6 mass % to 1.5 mass %; ni: more than 0 mass % up to 2.0 mass %; cr: 0.8 mass % to 2.5 mass %; mo: 0.10 mass % to 0.7 mass %; v: 0.035 mass % to 0.20 mass %; al: 0.015 mass % to 0.050 mass %; n: 30 ppm to 100 ppm, and o: more than 0 ppm up to 30 ppm, the balance being fe and inevitable impurities. The metal structure is mainly bainite, martensite or a mixed structure of bainite and martensite. ... Kabushiki Kaisha Kobe Seiko Sho

09/21/17 / #20170268077

High-strength high-ductility steel sheet

A high-strength high-ductility steel sheet has a specific component composition and a steel microstructure containing, in terms of an area ratio relative to the entire microstructure, 8% or more of a retained austenite, with the remainder being at least one of bainite, martensite, tempered bainite, and tempered martensite. With respect to the carbon concentration in the retained austenite, an average carbon concentration is from 0.9 to 1.2 mass %, a standard deviation of the carbon concentration distribution is 0.35 mass % or more, and an area ratio of a region having the carbon concentration of 1.5 mass % or more, relative to the entire microstructure, is 1.0% or more.. ... Kabushiki Kaisha Kobe Seiko Sho

09/21/17 / #20170266723

Mixed powder for powder metallurgy

An objective of the present invention is to provide a mixed powder for powder metallurgy that makes it possible to improve mold-filling ability and reduce spread in weight of molded bodies. The mixed powder for powder metallurgy according to the present invention is obtained by mixing a graphite powder with an average particle diameter d50 of 1.0 μm or more to 3.0 μm or less and d90 of 10 μm or less, without adding a binder, with an iron-based powder, while applying a sheer force. ... Kabushiki Kaisha Kobe Seiko Sho

09/14/17 / #20170259484

Resin pelletizer device and cavitation monitoring method

Provided is a resin pelletizer device capable of monitoring cavitation. A resin pelletizer device (100) includes a die (6) including a die surface (61) in which die holes (63) are formed, rotary blades (21) that rotate on the die surface (61) in the water, thereby cutting resin extruded from the die holes (63) in the water into a pellet form, a sensor (150) that detects an elastic wave generated during the rotation of the rotary blades (21) on the die surface (61), and a determination unit (121) that monitors an output value of the sensor (150), and determines that cavitation occurs when the output value of the sensor (150) becomes less than a predetermined threshold.. ... Kabushiki Kaisha Kobe Seiko Sho

09/07/17 / #20170252988

Process and apparatus for producing fiber-reinforced thermoplastic resin tape

Provided are a process and an apparatus for producing a fiber-reinforced thermoplastic resin tape, the process and the apparatus being capable of preventing fiber cut from occurring at the start of production of the fiber-reinforced thermoplastic resin tape. The provided process includes a resin impregnation step of opening a fiber bundle and impregnating the fiber bundle with molten thermoplastic resin and a through-nozzle passing step of passing the fiber bundle having undergone the resin impregnation step through a slit formed in a nozzle. ... Kabushiki Kaisha Kobe Seiko Sho

08/31/17 / #20170247782

Forged aluminum alloy having excellent strength and ductility and method for producing the same

Provided is a hot-forged 6xxx-series aluminum alloy having excellent corrosion resistance and still having both high strength and good ductility. A forged 6xxx-series aluminum alloy having a specific chemical composition after solution treatment is further subjected to warm working to introduce dislocations into the forged aluminum alloy microstructure. ... Kabushiki Kaisha Kobe Seiko Sho

08/24/17 / #provided is a casting method using lost foam capable of forming a small highly-finished hole with a diameter of 18 mm or less and a length of 50 mm or more by casting. a casting method using lost foam of the present embodiment includes the steps of embedding, in foundry sand, a casting pattern formed by applying a mold wash with a thickness of 1 mm or more to a surface of the foam pattern, the foam pattern having a hole with a diameter of d (mm); replacing the foam pattern with molten metal by pouring the molten metal into the casting pattern and losing the foam pattern; and forming a casting having a small hole with a diameter of 18 mm or less and a length of 50 mm or more by cooling the molten metal, and the method satisfies the following formulas (0) and (1):

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

08/24/17 / #20170239758

Flux-cored wire for arc welding of duplex stainless steel and weld metal

A flux-cored wire for are welding of a duplex stainless steel includes a stainless-steel sheath filled with a flux and contains, with respect to the total mass of the wire, predetermined amounts of cr, ni, mo, n, mn, and si, in which letting a ti alloy content in terms of ti be [ti] and letting an al alloy content in terms of al be [al], [ti] and [al] are predetermined values, and in which parameter a expressed as a=[ti]+2×[al] satisfies a predetermined value, and the balance is composed of fe, a slag-forming component, and incidental impurities.. . ... Kabushiki Kaisha Kobe Seiko Sho

08/17/17 / #20170237327

Outer rotor-type axial gap brushless motor

In the outer rotor-type axial gap brushless motor of the present invention, each of a plurality of coils provided to a stator is constituted by winding a band-shaped conductor member via an insulating member such that the width direction of the conductor member runs along the axial direction of the coil, and each coil has a through passage which penetrates in the axial direction of the coil and which is included between prescribed turns in a portion of the coil that corresponds to the outer side in the radial direction of the stator relative to a core portion of the coil.. . ... Kabushiki Kaisha Kobe Seiko Sho

08/17/17 / #20170234774

Tire uniformity tester and tire uniformity measurement method

A tire uniformity tester having: a spindle capable of rotating while holding a tire; a drum; a pressing mechanism that rotatably supports the drum and makes it possible to press a tire attached to the spindle into the drum through the relative movement of the drum and spindle; a uniformity measurement unit for measuring the uniformity of the tire during forward rotation and reverse rotation; and a control device. The control device controls the driving of the rotation of the spindle and the relative positions of the spindle and drum so that when the rotation direction of the spindle is reversed, the spindle and drum are separated from each other such that the spindle rotation speed reaches zero in a state in which the outer peripheral surface of the drum and the tire tread surface are not in contact with each other.. ... Kabushiki Kaisha Kobe Seiko Sho

08/17/17 / #20170234171

Compressed fluid storage power generation device

A compressed fluid storage power generation device including a compressor and compressor bodies for compressing a working fluid; a pressure accumulation tank for storing the working fluid compressed by the compressor bodies; a power generator having expanders which are driven by the working fluid and a power generator body which is driven by the expanders; high-temperature heat recovery units for recovering heat from the working fluid flowing from the compressor bodies into the pressure accumulation tank; high-temperature heating units for heating, with the recovered heat, the working fluid flowing from the pressure accumulation tank into the expanders; a low-temperature heat recovery unit for recovering heat generated in a low-temperature heat generation section of the compressor and/or power generator into a low-temperature heat carrier; and low-temperature heating units for heating the working fluid by means of heat exchange with the low-temperature heat carrier carrying the heat recovered by the low-temperature heat recovery unit.. . ... Kabushiki Kaisha Kobe Seiko Sho

08/17/17 / #20170234164

Rotary machine unit

A rotary machine unit equipped with rotary shaft provided so as to penetrate the respective opposing surfaces of a first casing and a second casing arranged opposing one another, said rotary machine unit also being equipped with at least two engagement mechanisms equipped with a first engaging part provided on the opposing surface of the first casing and extending radially along the direction from the center part penetrated by the rotary shaft toward the circumferential edge part, and a second engaging part provided on the opposing surface of the second casing so as to engage the first engaging part in a state in which the first engaging part is able to move in the extension direction of the first engaging part. The engagement mechanisms are provided inclined with respect to one another when viewed from the axial direction of the rotary shaft.. ... Kabushiki Kaisha Kobe Seiko Sho

08/17/17 / #20170233853

Aluminum alloy sheet for forming

The present invention pertains to an al—mg—si alloy sheet for forming, that contains 0.2-2.0% of mg, 0.3-2.0% of si, and 0.005-0.3% of si (all amounts given with respect to mass), the balance comprising al and unavoidable impurities, wherein the aluminum alloy sheet for forming is characterized in that the structure of the aluminum alloy sheet is such that the average number density of compounds having a circle-equivalent diameter within a range of 0.3-20 μm as measured by sem at 500 times magnification is more than 0/mm2 but not more than 5,000/mm2, and of the compounds measured by sem, the average count ratio of compounds that contain 0.5% by mass or more of sn as identified using an x-ray spectrograph, is 0% or more but less than 50%. This aluminum alloy sheet for forming exhibits high bh response and good formability.. ... Kabushiki Kaisha Kobe Seiko Sho

08/10/17 / #disclosed is a method for controlling a ti concentration in a steel when manufacturing a silicon-deoxidized steel comprising 0.1 to 3% by mass of si and 0.0001 to 0.005% by mass of al by ladle refining of a molten steel, the method including the step of:

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

08/10/17 / #20170227505

System and method for detecting abnormality of rotating machines

A system for detecting an abnormality of rotating machines includes two or more devices for detecting an abnormality and a computer. The respective devices include a sensor for detecting vibration of the respective rotating machines and generating signals indicative of the vibration, and a transmitting unit for transmitting the signals to the computer. ... Kabushiki Kaisha Kobe Seiko Sho

08/10/17 / #20170225359

Kneader internal inspection device

A kneader internal inspection device according to the present invention suspends and supports a photographing unit, which is arranged in an interior of a kneader and which photographs the interior, so as to be vertically movable in the interior of the kneader. Therefore, such a kneader internal inspection device is capable of easily inspecting the interior of the kneader.. ... Kabushiki Kaisha Kobe Seiko Sho

08/03/17 / #to provide a steel for bolts with excellent delayed fracture resistance and cold forgeability while maintaining the strength as a steel material, and also to provide a bolt producing from such a steel for bolts.

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

08/03/17 / #20170219421

Device and system for detecting malfunction of rotating machine

Provided is a device for detecting a malfunction of a rotating machine, the device being able to early detect the malfunction and to have a reduced size. The device includes a detecting unit for detecting vibration of the machine, sampling a signal indicative of the vibration with a predetermined sampling frequency, and outputting, at a time at intervals of a predetermined period, a plurality of the sampled data detected within the predetermined period, a storage for storing the plurality of the sampled data, a frequency analyzer for analyzing the frequency of the plurality of the sampled data, a determination unit for performing a primary determination based on the result of the analysis, a display unit for displaying the result of the analysis in chronological order and in real time, and a communication unit for transmitting the plurality of the sampled data to an information-processing device for performing a secondary determination.. ... Kabushiki Kaisha Kobe Seiko Sho

08/03/17 / #20170219420

Rotating machine abnormality detection device and method and rotating machine

A rotating machine abnormality detection device and a rotating machine abnormality detection method according to the present invention are designed to detect an abnormality in a rotating machine including a rotary member rotatable about a predetermined axis, and detect an initial abnormality in the rotating machine based on first measurement data obtained by measuring a vibration in an ultrasonic wave band caused by the rotary member. A rotating machine according to the present invention includes the rotating machine abnormality detection device.. ... Kabushiki Kaisha Kobe Seiko Sho

08/03/17 / #20170219148

Flow passage structure

The flow passage structure comprises: a plural number of ceramic flow passage layers laminated with one another, inside of which a flow passage is formed; two outermost layers disposed on respective sides of the plural number of flow passage layers in a lamination direction where the flow passage layers are laminated; an outer elastic sheets made of an elastic body, which is interposed between each of the outermost layers and the flow passage layer adjacent thereto; and a fastening member fastening the two outermost layers to each other, in a state that the two outermost layers sandwich the flow passage layers from both sides in the lamination direction.. . ... Kabushiki Kaisha Kobe Seiko Sho

08/03/17 / #20170216901

Manufacturing method of press-formed article, press-formed article, and press forming apparatus

A manufacturing method of a press-formed article includes arranging a member to be pressed between first and second dies, and relatively moving the first and second dies so as to approach each other, thereby press forming to a portion to be pressed so that a height of the portion to be pressed decreases. In the press forming step, while first bent portions in a pair each bent in a protruded shape toward the second die on the portion to be pressed are held by groove-shaped holding portions in a pair separated from each other on the second die, a second bent portion bent in a protruded shape from a position between the first bent portions toward the first die on the portion to be pressed is pressed and deformed by a pressing portion of the first die.. ... Kabushiki Kaisha Kobe Seiko Sho

07/27/17 / #20170212085

Rotating machine abnormality detection device, method and system, and rotating machine

An abnormality detection device, an abnormality detection method and an abnormality detection system for a rotating machine according to the present invention sample a vibration of a rotating machine at a predetermined sampling frequency, output for each predetermined period of time a set of a plurality of samples detected within the predetermined period of time, store the set of samples in a storage section, perform frequency analysis on the set of samples, and display in real time frequency analysis results in chronological order. A rotating machine according to the present invention includes the abnormality detection device.. ... Kabushiki Kaisha Kobe Seiko Sho

07/27/17 / #20170211893

Heat exchanger and heat exchange method

A heat exchanger includes a channel structure including a first substrate in which a first channel is arrayed, and a second substrate stacked on the first substrate, in which a second channel is arrayed. The first channel has an effective area overlapping a range where the second channel is provided, when viewed in a lamination direction of the first and second substrates. ... Kabushiki Kaisha Kobe Seiko Sho

07/27/17 / #20170209950

Welding condition derivation device

A welding parameter derivation device of a welding machine having a torch and a weaving mechanism derives welding parameters in accordance with the cross-sectional shape of a weld portion of a new base metal. A database stores welding parameter data, and a welding parameter computation unit computes welding parameters for the shape of a groove or joint of a new base metal. ... Kabushiki Kaisha Kobe Seiko Sho

07/27/17 / #20170209827

Component transfer processing method and component transfer processing device

A gas transfer processing method includes: transferring gas to an inside or an outside of an absorption liquid within respective processing flow paths while circulating the absorption liquid through the respective processing flow paths; after the gas transferring, separating a mixed fluid including the absorption liquid discharged from outlets of the respective processing flow paths and gas by respective separation headers into the absorption liquid and the gas; and circulating the absorption liquid separated in the separating by returning the separated absorption liquid from the separation headers to inlets of the respective processing flow paths through respective recirculation lines, thus introducing the absorption liquid to the respective processing flow paths. The process promotes transfer of a target component to an absorption liquid, while enabling execution of a component transfer process by compact equipment.. ... Kabushiki Kaisha Kobe Seiko Sho

07/20/17 / #20170205316

Rotary machine abnormality detection device and method thereof and rotary machine

The present invention provides a rotary machine abnormality detection device capable of determining abnormality with higher accuracy, a method thereof, and a rotary machine provided therewith. A rotary machine abnormality detection device ad of the present invention detects abnormality in a rotary machine m having at least first and second rotating bodies using a specific feature amount based on a frequency spectrum of measurement data of vibration. ... Kabushiki Kaisha Kobe Seiko Sho

07/20/17 / #20170205276

Rotating machine abnormality diagnosis device, rotating machine abnormality diagnosis method, and rotating machine

A rotating machine abnormality diagnosing apparatus for diagnosing an abnormality in a rotating machine includes: an analyzing part which performs a time-frequency analysis to a signal s representing intensity and time relationship of an elastic wave generating in the rotating machine; an extracting part which extracts second data representing intensity and time relationship of a predetermined frequency component from first data obtained by the time-frequency analysis; and a determining part which determines that a first rotor and a second rotor are in contact with each other when the second data contains intensity variation having a cycle represented by t1×b=t2×a, in which a rotational cycle of the first rotor is denoted by t1, a rotational cycle of the second rotor is denoted by t2, and a ratio of a number of protrusions to a number of recesses is denoted by a:b.. . ... Kabushiki Kaisha Kobe Seiko Sho

07/20/17 / #20170204507

Arc evaporation source

Provided is an arc evaporation source capable of stably retaining an arc spot on the front end surface of a target and apparatus downsizing. An arc evaporation source includes a target to be melted and vaporized from its front end surface by arc discharge and at least one magnet disposed apart from a side surface of the target radially thereof. ... Kabushiki Kaisha Kobe Seiko Sho

07/20/17 / #20170204503

Aluminum alloy structural part, method for producing the same, and aluminum alloy sheet

Disclosed are a structural part obtained from a 6000 series aluminum alloy sheet as a shaping raw material and having an improved crash performance; and a method for producing the sheet. For the sheet, a 6000 series aluminum alloy sheet is used which has a specified composition and is produced in the usual way. ... Kabushiki Kaisha Kobe Seiko Sho

07/13/17 / #the present invention provides a method for casting a slab with good cast surface quality. the method includes pouring molten metal 8 into a mold 2 from one of the paired shorter sides of the mold 2 while allowing superheat Δt [° c.], which is a temperature difference obtained by subtracting the melting point tm [° c.] of the raw material from the temperature tin [° c.] of the molten material on the surface of the molten metal in the mold and at the pouring point of the molten metal, to satisfy the following formula (1) and formula (2):

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

07/13/17 / #20170198731

Hydraulic drive device

A hydraulic drive apparatus includes: an accumulator for receiving hydraulic fluid discharged from a hydraulic actuator during a lowering drive; an accumulator flow regulator capable of changing a flow rate of hydraulic fluid to be introduced to the accumulator from a closed circuit; a regeneration actuator for converting energy of the hydraulic fluid accumulated in the accumulator into motive force; a regeneration selector valve interposed between the accumulator and the regeneration actuator; a pump control section for limiting a pump discharge flow rate during the lowering drive; and a speed control section for operating the accumulator-flow-rate regulator so as to bring an actuating speed of the hydraulic actuator close to a target speed during the lowering drive.. . ... Kabushiki Kaisha Kobe Seiko Sho

07/13/17 / #20170198375

Wire rod for steel wire, and steel wire

An object of the present invention is to provide a wire rod for a steel wire, which is excellent in low cycle fatigue characteristics and is useful as a material for a high-strength steel wire such as a wire rope or a pc steel wire, and to provide a steel wire that can exhibit such characteristics. A wire rod for a steel wire of the present invention comprises by mass: c: 0.70 to 1.3%; si: 0.1 to 1.5%; mn: 0.1 to 1.5%; n: 0.001 to 0.006%; al: 0.001 to 0.10%; ti: 0.02 to 0.20%; b: 0.0005 to 0.010%; p: 0% or more and 0.030% or less; and s: 0% or more and 0.030% or less, with the balance being iron and inevitable impurities, wherein, the wire rod has pearlite as a main phase, an area ratio of proeutectoid ferrite is 1.0% or less, and an average thickness of the proeutectoid ferrite is 5 μm or less.. ... Kabushiki Kaisha Kobe Seiko Sho

07/13/17 / #20170198365

Rotary hearth furnace

A rotary hearth furnace includes a unit that supplies an agglomerate onto a hearth of the rotary hearth furnace, a unit that discharges a heated substance which has been heated in the rotary hearth furnace to the outside of the furnace, and a unit that discharges an exhaust gas in the rotary hearth furnace to the outside of the furnace. The rotary hearth furnace has a heating section and a non-heating section. ... Kabushiki Kaisha Kobe Seiko Sho

07/13/17 / #20170197269

Metal joined body and manufacturing method for metal joined body

A metal joined body in which a joint is formed from a first metal member and a second metal member. Brazed joint portions provided intermittently with a brazing material and solder joints filling the spaces between the brazed joint portions with a solder having a fusion point lower than the brazing material, are formed at a seam of the joint. ... Kabushiki Kaisha Kobe Seiko Sho

07/13/17 / #20170197245

Mixed powder for powder metallurgy

Provided is a mixed powder for powder metallurgy that has a low dust generating property and that forms therefrom a compact with high density and enables easy removal of the compact from a forming die. The mixed powder for powder metallurgy in the present invention is characterized by containing an iron-based powder, an auxiliary raw material, and a lubricant, the lubricant being a liquid lubricant that contains an organic metal component.. ... Kabushiki Kaisha Kobe Seiko Sho

07/06/17 / #20170194657

Fuel cell separator material and method for manufacturing said material

A process for producing a separator material suitable for fuel cells, wherein the separator includes a pure titanium or a titanium alloy as a base material. The method comprises an application step and a heat treatment step. ... Kabushiki Kaisha Kobe Seiko Sho

07/06/17 / #20170194218

Method for evaluating quality of oxide semiconductor thin film and laminated body having protective film on surface of oxide semiconductor thin film, and method for managing quality of oxide semiconductor thin film

Provided is a method for reliably and simply evaluating the quality of an oxide semiconductor thin film and a laminated body having a protective film on the surface of this oxide semiconductor thin film. Also provided is a method for reliably and simply managing the quality of an oxide semiconductor thin film. ... Kabushiki Kaisha Kobe Seiko Sho

07/06/17 / #20170191390

Silencer

A silencer includes: a housing that has a draw-in portion drawing in fluid, and a plurality of sound attenuating portions arranged in a flowing direction of the fluid; a first partition provided with an intermediate communicating portion communicating the most downstream attenuating portion with the adjacent attenuating portion located adjacent to the most downstream attenuating portion; a valve portion disposed in the most downstream attenuating portion, the valve portion being capable of closing the intermediate communicating portion; a valve holding portion holding the valve portion, the valve holding portion being detachably attached to the housing; and a draw-out portion provided in a portion of the most downstream attenuating portion other than the valve holding portion, the draw-out portion drawing out the fluid from the most downstream attenuating portion.. . ... Kabushiki Kaisha Kobe Seiko Sho

07/06/17 / #20170190049

Robot control device

A control device of a robot for controlling the angle of a joint of the robot that is driven by a motor. The control device is equipped with: a joint angle command-calculating unit for calculating a joint angle command value; an axial force torque-calculating unit for calculating the axial force torque generated in the joint axis; an elastic deformation-compensating unit for calculating a motor command angle by adding a joint deflection, which is calculated from the axial force torque and a joint spring constant, to the joint angle command value; a stopping position-detecting unit for detecting the angle of the motor when the robot contacts an external structure; and a command angle-switching unit for outputting the motor angle detected by the stopping position-detecting unit instead of the joint angle command value when the stopping position-detecting unit outputs the angle of the motor.. ... Kabushiki Kaisha Kobe Seiko Sho

06/29/17 / #provided is a method for simply evaluating defects caused in interface states in oxide semiconductor thin films and protective films in tfts having protective films formed on the surface of oxide semiconductor thin films without actually measuring the characteristics of the same.

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

06/29/17 / #20170184445

Rotating machine abnormality detection device, rotating machine abnormality detection method, and rotating machine

An abnormality detecting apparatus (10) for a rotating machine includes: a calculating part (15) which calculates a phase difference between signals respectively output from two sensors of one or more sets, the one or more sets being predetermined combinations of two sensors among the plurality of sensors, the plurality of sensors each of which detects an elastic wave generating in the rotating machine (1) having a rotor during rotation of the rotor, the sensors being arranged at predetermined different locations of the rotating machine (1); a storing part (16) which stores in advance information concerning a relationship between a phase difference and a contact position when a contact occurs during the rotation of the rotor, regarding the one or more sets; and a specifying part (17) which specifies a contact position by using a phase difference calculated by the calculating part (15) and the information stored in the storing part (16).. . ... Kabushiki Kaisha Kobe Seiko Sho

06/29/17 / #20170183751

High-strength cold-rolled steel sheet, high-strength hot-dip galvanized steel sheet, and high-strength hot-dip galvannealed steel sheet having excellent ductility, stretch-flangeability, and weldability

Provided is a high-strength cold-rolled steel sheet having excellent ductility and stretch-flangeability as well as weldability in a range in which a tensile strength is 980 mpa or higher and a 0.2% yield strength is less than 700 mpa (preferably 500 mpa or higher). In the high-strength cold-rolled steel sheet of the present invention, the chemical composition is adjusted as appropriate, and the area ratio of below-mentioned metal structures at a position of ¼ sheet thickness in the steel sheet satisfies following requirements: tempered martensite: 10 area % to less than 30 area %, bainite: more than 70 area %, total of tempered martensite and bainite: 90 area % or more, ferrite: 0 area % to 5 area %, and retained austenite: 0 area % to 4 area %. ... Kabushiki Kaisha Kobe Seiko Sho

06/29/17 / #20170182602

Aluminum alloy laminate

A laminated aluminum alloy sheet that includes a core material and a sacrificial material being clad on at least one side surface of the core material. The core material contains mn: from 0.5 to 1.8 mass %, si: from 0.4 to 1.5 mass % and cu: from 0.05 to 1.2 mass %, and contains at least one member of fe: 1.0 mass % or less and ti: 0.3 mass % or less, with the remainder being al and unavoidable impurities. ... Kabushiki Kaisha Kobe Seiko Sho

06/22/17 / #20170176295

Tire testing device

A tire testing device having a rotary drive unit that rotationally drives a tire; a load drum that has an outer peripheral surface that can come into contact with the tire being rotationally driven; a drum support mechanism that supports the load drum and relatively moves the load drum such that the tire and the outer peripheral surface of the load drum come into contact and separate; a shape sensor that detects a surface shape of the tire being rotationally driven; a drive control unit that controls the operation of the rotary drive unit, the drum support mechanism, and the shape sensor; a registration unit that stores information related to the tire test; and an input reception unit that receives, and registers, in the registration unit, information related to the tire test entered by a user prior to the tire test being conducted.. . ... Kabushiki Kaisha Kobe Seiko Sho

06/22/17 / #20170175238

Aluminum alloy material and joined body having exceptional adhesive endurance, and automotive component

An aluminum alloy material, containing al, mg, si and sn, where an oxide coating is formed on a surface of the aluminum alloy material, and when the oxide coating formed on the surface of the aluminum alloy material is subjected to glow discharge emission spectroscopic analysis, as the maximum value of each content of sn and mg for a region from the surface of the oxide coating to a depth where oxygen amount becomes 15 at %, a sn content is within a range of 0.01-10 at %, and a mg content is 0 at % or more and less than 10 at %.. . ... Kabushiki Kaisha Kobe Seiko Sho

06/22/17 / #20170175231

Aluminum alloy plate having excellent moldability and bake finish hardening properties

An aluminum alloy sheet excellent in terms of formability and bake hardenability which contains in terms of mass %, mg: 0.2 to 2.0%, si: 0.3 to 2.0% and sn: 0.005 to 0.3%, with the remainder being al and unavoidable impurities. A differential scanning calorimetry curve of the aluminum alloy sheet has an endothermic peak in a temperature range of 150 to 230° c. ... Kabushiki Kaisha Kobe Seiko Sho

06/22/17 / #20170173742

Aluminum alloy clad plate, and aluminum alloy clad structural member

Provided are an aluminum alloy clad plate for structural members, and an aluminum alloy clad structural member which have both of a high strength and formability (ductility) and further such a bh response that the plate and the member can gain a required high strength even through a high-temperature and short-period artificial aging. The clad plate is an aluminum alloy clad plate having laminated aluminum alloy layers as illustrated in figs. ... Kabushiki Kaisha Kobe Seiko Sho

06/22/17 / #20170173741

Aluminium alloy laminated plate

Provided is an aluminium alloy laminated plate having a sacrificial material cladded to at least one side surface of a core material, wherein the core material contains specified amounts of mn, si, cu, mg, fe, and ti, the balance is al and inevitable impurities, the number density of dispersed particles having a particle size of 0.01-0.5 μm is 10-100/μm3, and [(the total solid solution amount of mg, mn, si, and cu)/(the total added amount of mg, mn, si, and cu)] is 0.10 or more.. . ... Kabushiki Kaisha Kobe Seiko Sho

06/22/17 / #20170173722

Welding torch, welding robot, and welding system

A tip attached to a torch barrel of a welding torch includes: a cylindrical tip body attached to the torch barrel; a cylindrical orifice member fitted on an outer circumference of the tip body; an orifice-member support nut detachably attached to a front end outer circumference of the tip body and supporting the orifice member on the outer circumference of the tip body; a cylindrical contact tip detachably attached to a front-end inner circumference of the tip body; and an annular shield member disposed between the tip body and the contact tip. The shield member has an outer diameter set no less than a front-end outer diameter of the orifice-member support nut but no more than an outer diameter of the orifice member. ... Kabushiki Kaisha Kobe Seiko Sho

06/22/17 / #20170173543

Continuous kneading device

A continuous kneading device (1) includes a pair of kneading rotors (3), being capable of increasing mesh between the kneading rotors (3) while suppressing a kneading load applied to the kneading rotors (3). The continuous kneading device (1) includes a barrel (2) and a pair of kneading rotors (3) housed in the barrel (2) and rotating in mesh in directions different from each other. ... Kabushiki Kaisha Kobe Seiko Sho

06/15/17 / #to provide a hard coating having an excellent wear resistance and a die having the hard coating formed on the surface.

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

06/15/17 / #20170170029

Thin film transistor

This thin film transistor has a gate electrode, a gate insulating film, an oxide semiconductor thin film, an etch stop layer for protecting the oxide semiconductor thin film, a source and drain electrodes, and a passivation film in this order on a substrate. The oxide semiconductor thin film is formed of an oxide configured from in, ga and sn as metal elements, and o, and has an amorphous structure, and the etch stop layer and/or the passivation film includes sinx. ... Kabushiki Kaisha Kobe Seiko Sho

06/15/17 / #20170167797

Gas cooler

A gas cooler includes a pair of seal plates and a pair of first support ribs. The individual seal plate has a stepped surface which extends in a direction that a cooling portion is inserted into a casing. ... Kabushiki Kaisha Kobe Seiko Sho

06/15/17 / #20170167001

Forged aluminum alloy for automobiles

It is an object to provide a forged aluminum alloy for automobiles having a high strength. The forged aluminum alloy for automobiles contains mg: 0.70-1.50 mass %, si: 0.60-1.50 mass %, cu: 0.20-0.70 mass %, and ti: 0.001-0.100 mass %, and contains two elements or more out of mn: 0.01-0.80 mass %, cr: 0.10-0.30 mass % and zr: 0.05-0.25 mass %, the balance being al and inevitable impurities, in which the number density of acicular precipitates 1 having the circle equivalent diameter of 2-10 nm is 30,000 pieces/μm3 or more.. ... Kabushiki Kaisha Kobe Seiko Sho

06/15/17 / #20170165797

Cutting tool production method and cutting tool

A method for manufacturing a cutting tool includes a rake face forming of forming a rake face in a substrate serving as a base of the cutting tool, a flank face forming of forming a flank face in the substrate serving as the base of the cutting tool, a rounded face forming of forming a rounded face between the rake face and the flank face, and an r-value calculating of calculating an r-value which is a value of a radius of the rounded face to be formed in the rounded face forming.. . ... Kabushiki Kaisha Kobe Seiko Sho

06/08/17 / #an object of the present invention to provide a soft magnetic steel that improves the magnetic properties, that is, the soft magnetic properties, the cold forgeability, and the magnetic aging characteristics without adding a large amount of alloy elements. the present invention is directed to a soft magnetic steel, including c, mn, p, s, al, and n in each predetermined amount, in which an area ratio of carbides and carbonitrides that have a thickness of less than 0.4 μm is 0.20 area % or less, and an area ratio m of carbides and carbonitrides that have a thickness of 0.4 μm or more in terms of percentage satisfies a relationship represented by the formula (1) below:

Kabushiki Kaisha Kobe Seiko Sho (kobe Steel, Ltd.)

. . ... Kabushiki Kaisha Kobe Seiko Sho

06/08/17 / #20170159693

Steel wire for bolts, bolt, and methods for manufacturing same

Provided are a high-strength bolt having a tensile strength of 1,000 to 1,400 mpa and exhibits the same level of the delayed fracture resistance as that of the standard alloy steel even when omitting or reducing mo and cr from the scm steel and the scr steel, a steel wire for bolts used to manufacture such a high-strength bolt, and useful methods for manufacturing them. The steel wire for bolts in the present invention satisfies the predetermined chemical composition. ... Kabushiki Kaisha Kobe Seiko Sho








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