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Uacj Corporation patents


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

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "U" | Uacj Corporation-related inventors


Aluminum alloy brazing sheet

An aluminum alloy brazing sheet makes it possible to inexpensively braze aluminum in a nitrogen gas furnace without using flux and a toxic element. The aluminum alloy brazing sheet is used for brazing aluminum in an inert gas atmosphere without using flux, and includes a core material and a filler metal, one side or each side of the core material being clad with the filler metal, the core material being formed of an aluminum alloy that includes 0.2 to 1.3 mass % of mg, and the filler metal including 6 to 13 mass % of si and 0.004 to 0.1 mass % of li, with the balance being aluminum and unavoidable impurities.. ... Uacj Corporation

Method of manufacturing an aluminum structure

A brazing method includes shaping a clad plate to form a hollow structure. The clad plate has at least one layer containing an element that breaks down an oxide film when heated. ... Uacj Corporation

Aluminum heat exchanger

An aluminum heat exchanger is made by disposing an inner fin in a closed space formed by overlapping edge portions of a formed single tube plate or a plurality of formed tube plates, and brazing a first joint obtained by overlapping the edge portions of the tube plate and a second joint obtained by causing the inner fin to abut against the tube plate, wherein an al—si-based brazing filler material is interposed at the first and second joints, and brazing is carried out in an inert gas atmosphere without using flux, wherein the inner fin is constituted of a brazing sheet obtained by cladding a core material of an aluminum alloy, on both surfaces thereof, with the al—si-based brazing filler material having a solidus temperature of 570° c. Or lower, the solidus temperature being lower than a solidus temperature of the al—si-based brazing filler material interposed at the first joint.. ... Uacj Corporation

Method for producing electrolytic aluminum foil

A method for producing high quality electrolytic aluminum foil excellent in peelability from a cathode surface is provided. A method for producing electrolytic aluminum foil according to the present disclosure is a method for producing electrolytic aluminum foil, comprising steps of depositing an aluminum film on a surface of a cathode in an electrolytic cell supplied with an electrolytic solution and comprising the cathode; and peeling the deposited aluminum film from the surface of the cathode to provide aluminum foil, wherein the cathode has surface roughness of an arithmetic average roughness (ra) of 0.10 to 0.40 μm and a ten-point average roughness (rz) of 0.20 to 0.70 μm.. ... Uacj Corporation

Uacj Extrusion Corporation

. . ... Uacj Corporation

Aluminum-alloy brazing sheet fin material for heat exchanger, and production process therefor

The aluminium-alloy brazing sheet fin material having a core material and a brazing material. Before heating for brazing, the fin material has an average degree of cladding of 6 to 16% for each surface, a thickness of 40 to 120 μm and an electrical conductivity of 48 to 54% iacs and the core material has a metallographic structure having a distribution in which a mn-based compound having an equivalent circular diameter of 0.05 to 0.50 μm is present at an average distance between particles of 0.05 to 0.35 μm. ... Uacj Corporation

Press-forming die

A press-forming die (1) includes a die (2) having a die corner (21), which follows along an inward-facing corner (41) of a blank sheet (4), and a punch (3) having a punch corner (31). A corner groove (6) extends along a portion of the punch corner at which leading surfaces (33) and a side surface (34) intersect in a relative stroke direction (x) of the punch. ... Uacj Corporation

High-strength 6000-based alloy thick plate having uniform strength in plate thickness direction and method for manufacturing the same

The present invention relates to a high-strength aluminum alloy thick plate composed of an aluminum alloy including a prescribed quantity of si, mg, ti, fe, and the balance al. The thick plate has a material structure in which an area ratio of mg2si having circle equivalent diameters of 3 μm or more in a plate thickness central portion is 0.45% or less; and an area ratio of mg2si having circle equivalent diameters of 3 μm or more in a region of 20 mm±1.5 mm from a plate surface in a plate thickness direction is 1.2 times or more and 3.0 times or less the area ratio of mg2si having circle equivalent diameters of 3 μm or more in the plate thickness central portion. ... Uacj Corporation

Hot blow forming method for aluminum alloy sheet

A hot blow forming method for the aluminum alloy sheet carries out a hot blow forming to an aluminum alloy sheet using a first metal mold being a female mold for forming having a protruding surface portion on an inside surface thereof and a second metal mold for gas introduction. Immediately prior to the hot blow forming, a temperature (t1) of the aluminum alloy sheet and a temperature (t2) of the first metal mold satisfy a relation (t1)−(t2)≧30° c. ... Uacj Corporation

Aluminum alloy cladding material for heat exchanger

An aluminum alloy clad material includes a core material, one side being clad with cladding material 1, the other side being clad with cladding material 2, the core material including an aluminum alloy that includes 0.5 to 1.8% of mn, and limited to 0.05% or less of cu, with the balance being al and unavoidable impurities, the cladding material 1 including an aluminum alloy that includes 3 to 10% of si, and 1 to 10% of zn, with the balance being al and unavoidable impurities, and the cladding material 2 including an aluminum alloy that includes 3 to 13% of si, and limited to 0.05% or less of cu, with the balance being al and unavoidable impurities, wherein the si content x (%) in the cladding material 1 and the si content y (%) in the cladding material 2 satisfy the value (y−x) is −1.5 to 9%.. . ... Uacj Corporation

Aluminum alloy cladding material for heat exchanger

A three-layer clad material includes a core material, a cladding material 1, and a cladding material 2, the core material including an aluminum alloy that includes 0.5 to 1.8% of mn, and either or both of more than 0.05% and less than 0.2% of cu, and 0.05 to 0.30% of ti, with the balance being al and unavoidable impurities, the cladding material 1 including an aluminum alloy that includes 3 to 10% of si, and 1 to 10% of zn, with the balance being al and unavoidable impurities, and the cladding material 2 including an aluminum alloy that includes 3 to 13% of si, and 0.05% or less of cu, with the balance being al and unavoidable impurities, wherein the si content x (%) in the cladding material 1 and the si content y (%) in the cladding material 2 satisfy the value (y-x) is −1.5 to 9%.. . ... Uacj Corporation

Brazing method

A hollow aluminum structure that will be brazed includes at least one brazing sheet having a filler metal layer clad onto a core layer. The core layer is composed of aluminum or an aluminum alloy containing less than 0.2 mass % mg. ... Uacj Corporation

Superplastic-forming aluminum alloy plate and production method therefor

The present disclosure shows a superplastic-forming aluminum alloy plate that has excellent properties for superplastic-forming, such as blow forming, and that has excellent surface properties after forming. Shown is a superplastic-forming aluminum alloy plate and a production method therefor, the superplastic-forming aluminum alloy plate being characterized by comprising an aluminum alloy which contains 2.0 to 6.0 mass % mg, 0.5 to 1.8 mass % mn and 0.40 mass % or less cr and in which the balance consists of al and unavoidable impurities, wherein the unavoidable impurities are restricted to have 0.20 mass % or less fe and 0.20 mass % or less si, the 0.2% proof stress is 340 mpa or more, and the density of intermetallic compounds having an equivalent circular diameter of 5 to 15 μm at the rd-td plane which extends along the center of the plate cross-section is 50 to 400 pieces/mm2.. ... Uacj Corporation

Aluminum alloy brazing sheet and brazing method

An aluminum alloy brazing sheet exhibits excellent brazability by effectively weakening an oxide film formed on the surface of a filler metal. The aluminum alloy brazing sheet includes a core material and a filler metal, and is used to braze aluminum in an inert gas atmosphere or in vacuum, the core material including aluminum or an aluminum alloy, the filler metal including 6 to 13 mass % of si, with the balance being al and unavoidable impurities, and one side or each side of the core material being clad with the filler metal, wherein the core material is clad with the filler metal in a state in which a sheet material is interposed between the core material and the filler metal, the sheet material including one element, or two or more elements, among 0.05 mass % or more of li, 0.05 mass % or more of be, 0.05 mass % or more of ba, and 0.05 mass % or more of ca, with the balance being al and unavoidable impurities.. ... Uacj Corporation

10/05/17 / #20170282271

Brazing furnace and aluminum-material brazing method

A brazing furnace (1) includes a preheating chamber (2) and a brazing chamber (3). The preheating chamber (2) includes: a vacuum pump (21) for reducing the pressure inside the preheating chamber (2) while a material to be processed (100) is housed therein; a preheating apparatus (22), which preheats the material to be processed (100) in a reduced-pressure atmosphere; and a gas introducing apparatus (23), which introduces inert gas into the preheating chamber (2) to restore the pressure inside the preheating chamber (2) after the preheating. ... Uacj Corporation

08/31/17 / #20170247781

Hot forming aluminum alloy plate and production method therefor

The present invention provides an al—mg—si-based hot forming aluminum alloy plate which has not only high age-hardening property but also a high m value in a high strain rate range and excellent surface properties after forming and which is suitable for hot forming. The hot forming aluminum alloy plate comprises an aluminum alloy comprising 0.3 to 1.8 mass % mg, 0.6 to 2.0 mass % si and 0.04 to 0.20 mass % fe. ... Uacj Corporation

07/27/17 / #20170215302

Heat-exchanger heat sink and heat exchanger provided with the heat sink

A heat-exchanger heat sink (1; 102; 103; 104) includes a plurality of fin plates (2; 202; 203; 203a, 203b; 205), which are lined up spaced apart from one another in a plate-thickness direction; and at least one linking part (3; 3a, 3b; 304), which is disposed such that it intersects and hold the plurality of fin plates (2). The at least one linking part has a base (31), which may be rod or bar shaped, and a plurality of positioning protrusions (32), which protrude from a side surface of the base. ... Uacj Corporation

07/20/17 / #20170205160

Heat exchanger and method of manufacturing the same

A method for manufacturing a heat exchanger (1) includes joining an inner fin (3) to a hollow structure (20) formed from at least two clad plates (200a, 200b) by heating and brazing a filler metal layer (b). Each clad plate has a core layer (a) composed of an aluminum alloy that contains mg: 0.40-1.0 mass %. ... Uacj Corporation

06/01/17 / #20170151638

Aluminum alloy brazing sheet and method for producing the same

An aluminum alloy brazing sheet achieves a stable brazability equal to by brazing using a flux, even if an etching treatment is not performed on the brazing site. The aluminum alloy brazing sheet is used to braze aluminum in an inert gas atmosphere without using a flux and includes a core material and a filler metal, one side or each side of the core material being clad with the filler metal, the core material being formed of an aluminum alloy that includes 0.2 to 1.3 mass % of mg, the filler metal including 6 to 13 mass % of si and 0.004 to 0.1 mass % of li, with the balance being aluminum and unavoidable impurities, a surface oxide film having been removed from the brazing sheet, and an oil solution that decomposes when heated at 380° c. ... Uacj Corporation

06/01/17 / #20170151637

Aluminum-alloy brazing sheet

A brazing sheet for brazing in an inert-gas atmosphere without using a flux has a core and a filler material clad to one side or both sides of the core. The core has a chemical composition that contains mg: 0.35-0.8% (mass %; likewise hereinbelow), the remainder being composed of al and unavoidable impurities. ... Uacj Corporation

05/18/17 / #20170137919

Aluminum alloy material, aluminum alloy structure, and manufacturing method for same

Aluminum alloy material containing si: 1.0 to 5.0 mass % and fe: 0.01 to 2.0 mass % with balance being al and inevitable impurities, wherein 250 pcs/mm2 or more to 7×105 pcs/mm2 or less of si-based intermetallic compound particles having equivalent circle diameters of 0.5 to 5 μm are present in a cross-section of the aluminum alloy material, while 100 pcs/mm2 or more to 7×105 pcs/mm2 or less of al-based intermetallic compound particles having equivalent circle diameters of 0.5 to 5 μm are present in a cross-section of the aluminum alloy material. An aluminum alloy structure is manufactured by bonding two or more members in vacuum or a non-oxidizing atmosphere at temperature at which a ratio of a mass of a liquid phase generated in the aluminum alloy material to a total mass of the aluminum alloy material is 5% or more and 35% or less.. ... Uacj Corporation

04/27/17 / #20170113305

Cladded aluminium-alloy material and production method therefor, and heat exchanger using said cladded aluminium-alloy material and production method therefor

This cladded aluminum-alloy material is provided with: an aluminum alloy core material, a coating material used to clad both surfaces of the core material; and a brazing material used to clad both of the coating material surfaces, or one of the coating material surfaces which is not at the core material side. The core material, the coating material and brazing filler material have described alloy compositions. ... Uacj Corporation

04/20/17 / #20170107600

Compressor impeller cast from al alloy and method for producing same

The present invention provides: a compressor impeller that cast from an aluminum alloy, has superior production characteristics, and exhibits stable high-temperature strength when used at temperatures around 200° c.; and a method for producing same. The compressor impeller that is cast from an al alloy is provided with a boss section, a plurality of vane sections and a disc section; the boss section, the plurality of vane sections and the disc section excluding the end section comprise an al alloy comprising a predetermined metal composition; and at the end section of the disc section, there are at least 10,000/mm2 of intermetallic compounds having a circle-equivalent diameter of 1-6 μm, and there are no greater than 500/mm2 of intermetallic compounds having a circle-equivalent diameter exceeding 6 μm.. ... Uacj Corporation

03/30/17 / #20170092955

Current-collector metal foil, current collector, and current-collector-metal-foil manufacturing method

A current-collector metal foil has at least at least one roughened surface and numerous recessed parts are present on the roughened surface. Each recessed part has an edge part that surrounds a bottom-surface part and is raised above the bottom-surface part.. ... Uacj Corporation

03/30/17 / #20170092386

Aluminum-alloy sheet for bus bar and manufacturing method thereof

An aluminum-alloy sheet for a bus bar has a chemical composition containing mg: 0.3%-0.9% (mass %, likewise below), si: 0.2%-1.2%, cu: 0.2% or less, and fe: 0.5% or less, the remainder being al and unavoidable impurities. In addition, acicular particles containing mg and si are present in the al matrix at 900-4,000 particles/μm2. ... Uacj Corporation

03/23/17 / #20170080528

Clad aluminum alloy material with excellent corrosion resistance and brazeability and method for producing the same

A clad aluminum alloy material exhibiting favorable corrosion resistance and brazeability in an alkaline environment is shown by a clad aluminum alloy material with excellent brazeability and corrosion resistance in which one surface of an aluminum alloy core material is clad with a sacrificial anode material and the other surface is clad with brazing filler material. The core material includes an aluminum alloy of si: 0.3-1.5%, fe: 0.1-1.5%, cu: 0.2-1.0%, mn: 1.0-2.0%, and si content+fe content ≧0.8%, wherein the 1-20 μm equivalent circle diameter al—mn—si—fe-based intermetallic compound density is 3.0×105 to 1.0×106 pieces/cm2, and the 0.1μm to less than 1μm equivalent circle diameter al—mn—si—fe-based intermetallic compound density is at least 1.0×107pieces/cm2. ... Uacj Corporation

02/16/17 / #20170045316

Aluminum cladding material, production method therefor, aluminum cladding material for heat exchangers, production method therefor, aluminum heat exchanger using said aluminum cladding material for heat exchangers, and production method therefor

Provided are an aluminum cladding material having excellent corrosion resistance, a production method therefor, an aluminum cladding material for heat exchangers having excellent corrosion resistance, a production method therefor, an aluminum heat exchanger using said aluminum cladding material for heat exchangers, and a production method therefor. Said aluminum cladding material comprises an aluminum alloy core material and a sacrificial anode material layer clad on at least one surface thereof. ... Uacj Corporation

02/09/17 / #20170040617

Aluminum alloy foil for electrode current collectors and manufacturing method thereof

It is an object to provide an aluminum alloy foil for an electrode current collector, the foil having a high post-drying strength after application of an active material while keeping a high electrical conductivity. Disclosed is an aluminum alloy foil for an electrode current collector, comprising 0.03 to 0.1 mass % (hereinafter, “mass %” is simply referred to as “%”) of fe, 0.01 to 0.1% of si, and 0.0001 to 0.01% of cu, with the rest consisting of al and unavoidable impurities, wherein the aluminum alloy foil after final cold rolling has a tensile strength of 180 mpa or higher, a 0.2% yield strength of 160 mpa or higher, and an electrical conductivity of 60% iacs or higher; and the aluminum alloy foil has a tensile strength of 170 mpa or higher and a 0.2% yield strength of 150 mpa or higher even after the aluminum alloy foil is subjected to heat treatment at any of 120° c. ... Uacj Corporation

02/09/17 / #20170037865

Forged material for rotor, and method for manufacturing rotor based on forged material for rotor

Provided is a forged material for a rotor for obtaining, by machining, a rotor including a hub portion and a plurality of blade portions. The forged material for a rotor comprises a hub forming section and a plurality of blade forming sections that one-to-one correspond to the plurality of blade portions. ... Uacj Corporation

01/19/17 / #20170016102

Structural aluminum alloy plate and method of producing the same

A structural aluminum alloy plate includes 7.0% to 12.0% by mass of zn, 1.5% to 4.5% by mass of mg, 1.0% to 3.0% by mass of cu, 0.05% to 0.30% by mass of zr, 0.005% to 0.5% by mass of ti, 0.5% or less by mass of si, 0.5% or less by mass of fe, 0.3% or less by mass of mn, 0.3% or less by mass of cr, and the balance that includes aluminum and inevitable impurities. A method of producing the structural aluminum alloy plate is also provided.. ... Uacj Corporation

01/05/17 / #20170003085

Aluminum alloy fin material for heat exchangers, and method of producing the same, and heat exchanger

A heat exchanger aluminum alloy fin material, comprising si 0.5 to 1.5 mass %; fe 0.1 to 1.0 mass %; mn 0.8 to 2.2 mass %; zn 0.4 to 2.5 mass %; and further at least one selected from cu, ti, zr, cr, and v each in 0.02 to 0.3 mass %, with the balance being al and unavoidable impurities, wherein a metallographic microstructure before braze-heating is such that a density of second phase particles having a circle-equivalent diameter of less than 0.1 μm is less than 1×107 particles/mm2, and that a density of second phase particles having a circle-equivalent diameter of 0.1 μm or more is 5×104 particles/mm2 or more, wherein a tensile strength before braze-heating, tsb, a tensile strength after braze-heating, tsa, and a sheet thickness of the fin material, t, satisfy: 0.4≦(tsb−tsa)/t≦2.1, and wherein the sheet thickness is 150 μm or less.. . ... Uacj Corporation








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