Patents Assigned to UACJ CORPORATION
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Patent number: 10688601Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material, an intermediate layer material that is clad on one surface of the core material, and a first brazing filler metal that is clad on a surface of the intermediate layer material, the surface not being on the core material side, wherein the core material, the intermediate layer material, and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 ?m inclusive in the intermediate layer material before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 ?m inclusive in the intermediate layer material after brazing heating is at least 1.0×104 pieces/mm2. Further provided is a method for producing the aluminum alloy clad material.Type: GrantFiled: July 8, 2016Date of Patent: June 23, 2020Assignees: DENSO CORPORATION, UACJ CORPORATIONInventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Naoki Yamashita
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Publication number: 20200190635Abstract: An aluminum alloy pipe-shaped hollow material is produced by porthole extrusion. The aluminum alloy pipe-shaped hollow material includes an Al—Mg-based alloy containing Mg of 0.7 mass % or more and less than 2.5 mass %, and Ti of more than 0 mass % and 0.15 mass % or less, with the balance being Al and unavoidable impurities. A work hardening coefficient n-value is 0.25 or more and less than 0.43. The aluminum alloy pipe-shaped hollow material has an inner-surface ridged structure inside thereof, and an area ratio of the inner-surface ridged structure in a cross-section orthogonal to an extending direction of the aluminum alloy pipe-shaped hollow material is 1 to 30%. The present invention can provide an aluminum alloy pipe-shaped hollow material that is an aluminum alloy pipe-shaped hollow material of a 5000 series aluminum alloy produced by porthole extrusion and has excellent bending processability.Type: ApplicationFiled: May 28, 2018Publication date: June 18, 2020Applicants: UACJ Corporation, UACJ Extrusion CorporationInventors: Taichi SUZUKI, Naoki YAMASHITA
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Patent number: 10682730Abstract: An aluminum alloy brazing sheet used for brazing aluminum, without using a flux, in an inert gas atmosphere or vacuum is formed by arranging a brazing material on one side or both sides of a core material made of pure aluminum or aluminum alloy, the brazing material including 6% to 13% by mass of Si and the balance being Al and inevitable impurities, and performing cladding with an intermediate material interposed between the core material and the brazing material, the intermediate material including 0.01% to 1.5% by mass of Bi, 1.5% to 13% by mass of Si, and the balance being Al and inevitable impurities, the intermediate material having a thickness of 2% to 35% of a thickness of the brazing material, wherein one or both of the intermediate material and the core material includes 0.4% to 6% by mass of Mg.Type: GrantFiled: June 29, 2016Date of Patent: June 16, 2020Assignee: UACJ CORPORATIONInventors: Yasunaga Itoh, Tomoki Yamayoshi, Yutaka Yanagawa
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Patent number: 10661395Abstract: 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. The filler material has a chemical composition that contains Si: 6-13% and Bi: 0.001-0.05% and Mg: limited less than 0.05%, the remainder being composed of Al and unavoidable impurities.Type: GrantFiled: July 29, 2015Date of Patent: May 26, 2020Assignee: UACJ CORPORATIONInventors: Junichi Ichikawa, Tomoki Yamayoshi, Yasunaga Itoh, Yutaka Yanagawa
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Publication number: 20200157668Abstract: The present disclosure relates to an aluminum alloy plate having a composition containing Si: 0.03 to 0.35%, Fe: 0.03 to 0.35%, Mg: 3.0 to 5.0%, Cu: more than 0.09% and less than 0.50%, and Mn: more than 0.05% and 0.35% or less in terms of mass %, with the balance including Al and inevitable impurities.Type: ApplicationFiled: January 24, 2020Publication date: May 21, 2020Applicant: UACJ CORPORATIONInventors: Yoshifumi SHINZATO, Takeshi NAGAI, Mineo ASANO
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Patent number: 10640852Abstract: An aluminum-alloy clad material includes a skin layer clad to and covering at least one surface of a core layer. The core layer is composed of an aluminum alloy containing Cu: 3.8-4.9 mass %, Mg: 1.2-1.8 mass % and Mn: 0.3-0.9 mass %. The core layer has an area number density of microvoids that have a circle-equivalent diameter of 0.5 ?m or greater that is 100/mm2 or less. The skin layer has an Al purity of 99.5 mass % or greater. A method of manufacturing a wrought material from such an aluminum-alloy clad material includes heating the wrought material to the solution heat treatment temperature of the core layer at a temperature-rise rate of 50° C.-200° C./h.Type: GrantFiled: March 28, 2018Date of Patent: May 5, 2020Assignee: UACJ CORPORATIONInventors: Akifumi Hasegawa, Hiroki Tanaka
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Publication number: 20200131656Abstract: A production method of aluminum including: a step of synthesizing an aluminum compound from a mixture including a halogenated aluminum hydrate and a perfluoroalkylsulfonimide-type or perfluoroalkylsulfonamide-type ionic liquid represented by general formula (1); a step of dissolving the aluminum compound in a nitrile-based organic solvent to prepare an aluminum electrolyte; a step of adding at least one ligand selected from a phosphorus compound and an organic compound having an amide group to the aluminum electrolyte and dehydrating water molecules from a hydrate included in the aluminum electrolyte; and a step of electrodepositing aluminum on a cathode by allowing electricity to pass between an anode and the cathode in the aluminum electrolyte after the dehydrating step.Type: ApplicationFiled: October 24, 2019Publication date: April 30, 2020Applicant: UACJ CORPORATIONInventors: Junji NUNOMURA, Yoichi KOJIMA, Mikito UEDA
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Patent number: 10634439Abstract: Provided are an aluminum alloy brazing sheet for heat exchangers, which exhibits excellent formability and brazeability, and an advantageous process for producing the same. The aluminum alloy brazing sheet for heat exchangers according to the present invention is configured such that: the aluminum alloy composition of a core material and the aluminum alloy composition and temper of a filler material are respectively controlled; and a core material portion of the brazing sheet has a specific electric resistivity at room temperature and a specific dispersion ratio of second phase particles. The brazing sheet is configured to further exhibit certain properties in terms of a work hardening exponent (n-value) where a nominal strain is within a range of 1%-2% and in terms of a push-in depth when a penetration crack is generated in a punch stretch forming test using a round-head punch having a diameter of 50 mm.Type: GrantFiled: August 23, 2018Date of Patent: April 28, 2020Assignee: UACJ CorporationInventors: Wataru Nakagawa, Satoshi Tanaka
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Publication number: 20200124362Abstract: In this flat extruded aluminum multi-port tube, the corrosion-resistance, at inner surfaces of a plurality of flow passages independently and parallelly extending in the tube axial direction, is effectively enhanced. In a flat extruded aluminum multi-port tube 10 formed by an extrusion by employing an aluminum tube material and an aluminum sacrificial anode material having an electrochemically lower potential than the aluminum tube material, the aluminum sacrificial anode material is exposed to form a sacrificial anode portion 18 at least in a part of an inner circumferential portion in each of the plurality of flow passages 12.Type: ApplicationFiled: December 18, 2019Publication date: April 23, 2020Applicants: UACJ CORPORATION, UACJ EXTRUSION CORPORATION, DENSO CORPORATIONInventors: Shinichi NAKAMURA, Naoki YAMASHITA, Seiichi NAGAO, Satoshi SHIBATA, Kazuhisa NAITOU, Takeshi OKINOTANI, Susumu ICHIKAWA, Akira ITOH
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Patent number: 10625379Abstract: Provided is an aluminum alloy clad material including an aluminum alloy core material and a first brazing filler metal that is clad on one surface or both surfaces of the core material, wherein the core material and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 0.1 ?m in the first brazing filler metal before brazing heating is at least 1.0×105 pieces/mm2, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 2 ?m in the first brazing filler metal after brazing heating is at least 300 pieces/mm2. Further provided are a method for producing the aluminum alloy clad material and a heat exchanger employing the aluminum alloy clad material.Type: GrantFiled: July 8, 2016Date of Patent: April 21, 2020Assignee: UACJ CorporationInventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Wataru Narita, Naoki Yamashita
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Patent number: 10590555Abstract: 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 ?m and a ten-point average roughness (Rz) of 0.20 to 0.70 ?m.Type: GrantFiled: November 29, 2017Date of Patent: March 17, 2020Assignee: UACJ CorporationInventors: Yukio Honkawa, Junji Nunomura, Yoichi Kojima
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Publication number: 20200070286Abstract: An aluminum alloy includes: a core material made of an aluminum alloy including Si, Cu, and Mn, with the balance being Al and unavoidable impurities; a brazing material cladded onto one side surface of the core material, and made of an aluminum alloy including Si, with the balance being Al and unavoidable impurities; and a sacrificial anode material cladded onto the other side surface of the core material, and made of an aluminum alloy including Zn and Si, with the balance being Al and unavoidable impurities, wherein a total number density of single phase pure Si and a intermetallic compound existing in the sacrificial anode material and having a grain size of 0.1 ?m or more and 1.0 ?m or less is 1×103/mm2 or more and 1×106/mm2 or less.Type: ApplicationFiled: December 1, 2017Publication date: March 5, 2020Applicant: UACJ CorporationInventors: Tatsuya Ide, Tomohiro Shoji, Dai Yamamoto
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Patent number: 10576772Abstract: A gravure printing roll that enables printing of fine dots with a size close to that of cells and enables printing on a print subject, such as a printing substrate, without changing the appearance of the print subject. The gravure printing roll includes: a gravure printing roll body; and cells formed in a peripheral surface of the gravure printing roll body. Each of the cells has an opening with a ratio between a dimension in a circumferential direction of the gravure printing roll body and a dimension in an axial center direction of the gravure printing roll body (dimension in the circumferential direction/dimension in the axial center direction) being 1.15 to 7, and have an opening area of 3900 ?m2 or smaller.Type: GrantFiled: February 3, 2016Date of Patent: March 3, 2020Assignees: UACJ CORPORATION, UACJ FOIL CORPORATION, THINK LABORATORY CO., LTD.Inventors: Hiroshi Nishio, Yukie Kitada, Tatsuo Shigeta
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Patent number: 10544494Abstract: 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 ?m 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 ?m 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 ?m or more in the plate thickness central portion. The aluminum alloy thick plate has sufficient strength and good uniformity of strength in the plate thickness direction, and can be manufactured by cooling it after a solution treatment, so that suitable temperature difference occurs between a plate thickness central portion and a surface, and then performing a quenching treatment.Type: GrantFiled: May 23, 2017Date of Patent: January 28, 2020Assignee: UACJ CORPORATIONInventors: Yuya Sawa, Minoru Hayashi
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Publication number: 20200024712Abstract: In order to contribute to optimization of manufacturing conditions under which to manufacture an aluminum product, a property predicting device includes: a data obtaining section configured to obtain a plurality of parameters indicative of manufacturing conditions under which to manufacture an aluminum product; and a neural network (i) including an input layer, at least one intermediate layer, and an output layer and (ii) configured to (a) receive the plurality of parameters as input data supplied to the input layer and (b) supply, from the output layer, a property value of the aluminum product which has been manufactured under the manufacturing conditions indicated by the plurality of parameters.Type: ApplicationFiled: September 28, 2017Publication date: January 23, 2020Applicants: UACJ Corporation, UACJ CorporationInventor: Shingo Iwamura
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Publication number: 20200010934Abstract: An aluminum alloy thick plate is formed of an aluminum alloy including Mg of 2.0 to 5.0 mass %. The aluminum alloy thick plate has a plate thickness of 300 to 400 mm. A is 160 pieces/cm2 or less and B is 1.15 times or more as large as A, where (i) A (pieces/cm2) is a maximum value in numbers of porosities with an equivalent circle diameter of 50 ?m or more in each of positions located at a center portion in a plate thickness direction and at positions of 0.39 Wa to 0.48 Wa in a plate width direction; and (ii) B (pieces/cm2) is a maximum value in numbers of porosities with an equivalent circle diameter of 50 ?m or more in each of positions located at the center portion in the plate thickness direction and at positions of 0.12 Wa to 0.30 Wa in the plate width direction.Type: ApplicationFiled: February 22, 2018Publication date: January 9, 2020Applicant: UACJ CorporationInventors: Takashi KUBO, Tatsuya YAMADA
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Patent number: 10513236Abstract: An energy absorbing member (20) is formed of an aluminum alloy extruded material having a substantially quadrangular outer shape. Straight portions of a pair of long sides of a quadrangular shape are each segmented into three side walls (21a, 21b, 21c) by two arcuate internal projections (26) that project inward. Vertices of opposing internal projections (26) are joined by a rib (25). Accordingly, the energy absorbing member (20) is configured to have a shape in which three cylindrical portions having hollow portions (24a, 24b, 24c) are joined. Arc-shaped internal projections (23) that each project inward are provided in four corners of the quadrangular shape.Type: GrantFiled: December 22, 2016Date of Patent: December 24, 2019Assignee: UACJ CorporationInventors: Tomoya Yokota, Yutaka Yamada, Yoshiharu Sakai
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Publication number: 20190345587Abstract: An aluminum alloy fin material for a heat exchanger is made of an aluminum alloy including 0.05 mass % to 0.5 mass % of Si, 0.05 mass % to 0.7 mass % of Fe, 10 mass % to 2.0 mass % of Mn, 0.5 mass % to 1.5 mass % of Cu, and 3.0 mass % to 7.0 mass % of Zn, with the balance being Al and unavoidable impurities. In an L-ST plane thereof, second-phase grains having an equivalent circle diameter equal to or more than 0.030 ?m and less than 0.50 ?m have a perimeter density of 0.30 ?m/?m2 or more, second-phase grains having an equivalent circle diameter equal to or more than 0.50 ?m have a perimeter density of 0.030 ?m/?m2 or more, and specific resistance thereof at 20° C. is 0.030 ??m or more.Type: ApplicationFiled: December 1, 2017Publication date: November 14, 2019Applicant: UACJ CorporationInventors: Wataru Nakagawa, Atsushi Fukumoto, Junichi Mochizuki, Tatsuya Ide
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Patent number: 10475547Abstract: 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/?m2. In addition, Fe-based particles present in the above-mentioned Al matrix have an average circle-equivalent diameter of 5 ?m or less, and the number of particles having a circle-equivalent diameter of more than 2 ?m is 10,000 particles/mm2 or less.Type: GrantFiled: April 8, 2015Date of Patent: November 12, 2019Assignee: UACJ CORPORATIONInventors: Hidetaka Nakanishi, Mineo Asano
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Publication number: 20190330752Abstract: A method for producing aluminum includes: a dissolution step of dissolving a hydrate containing Al in water to prepare an aqueous solution that contains Al ions; an extraction step of bringing an organic phase that is composed of an extractant into contact with an aqueous phase that is composed of the aqueous solution to extract the Al ions in the aqueous phase into the organic phase; and an electrodeposition step of electrolyzing the organic phase as an electrolytic solution to electrodeposit metallic Al onto a surface of a cathode from the Al ions in the electrolytic solution.Type: ApplicationFiled: July 9, 2019Publication date: October 31, 2019Applicant: UACJ CORPORATIONInventors: Junji Nunomura, Yukio Honkawa, Yoichi Kojima, Mikito Ueda