Patents Assigned to UACJ CORPORATION
  • Patent number: 10688601
    Abstract: 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: Grant
    Filed: July 8, 2016
    Date of Patent: June 23, 2020
    Assignees: DENSO CORPORATION, UACJ CORPORATION
    Inventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Naoki Yamashita
  • Publication number: 20200190635
    Abstract: 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: Application
    Filed: May 28, 2018
    Publication date: June 18, 2020
    Applicants: UACJ Corporation, UACJ Extrusion Corporation
    Inventors: Taichi SUZUKI, Naoki YAMASHITA
  • Patent number: 10682730
    Abstract: 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: Grant
    Filed: June 29, 2016
    Date of Patent: June 16, 2020
    Assignee: UACJ CORPORATION
    Inventors: Yasunaga Itoh, Tomoki Yamayoshi, Yutaka Yanagawa
  • Patent number: 10661395
    Abstract: 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: Grant
    Filed: July 29, 2015
    Date of Patent: May 26, 2020
    Assignee: UACJ CORPORATION
    Inventors: Junichi Ichikawa, Tomoki Yamayoshi, Yasunaga Itoh, Yutaka Yanagawa
  • Publication number: 20200157668
    Abstract: 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: Application
    Filed: January 24, 2020
    Publication date: May 21, 2020
    Applicant: UACJ CORPORATION
    Inventors: Yoshifumi SHINZATO, Takeshi NAGAI, Mineo ASANO
  • Patent number: 10640852
    Abstract: 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: Grant
    Filed: March 28, 2018
    Date of Patent: May 5, 2020
    Assignee: UACJ CORPORATION
    Inventors: Akifumi Hasegawa, Hiroki Tanaka
  • Publication number: 20200131656
    Abstract: 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: Application
    Filed: October 24, 2019
    Publication date: April 30, 2020
    Applicant: UACJ CORPORATION
    Inventors: Junji NUNOMURA, Yoichi KOJIMA, Mikito UEDA
  • Patent number: 10634439
    Abstract: 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: Grant
    Filed: August 23, 2018
    Date of Patent: April 28, 2020
    Assignee: UACJ Corporation
    Inventors: Wataru Nakagawa, Satoshi Tanaka
  • Publication number: 20200124362
    Abstract: 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: Application
    Filed: December 18, 2019
    Publication date: April 23, 2020
    Applicants: UACJ CORPORATION, UACJ EXTRUSION CORPORATION, DENSO CORPORATION
    Inventors: Shinichi NAKAMURA, Naoki YAMASHITA, Seiichi NAGAO, Satoshi SHIBATA, Kazuhisa NAITOU, Takeshi OKINOTANI, Susumu ICHIKAWA, Akira ITOH
  • Patent number: 10625379
    Abstract: 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: Grant
    Filed: July 8, 2016
    Date of Patent: April 21, 2020
    Assignee: UACJ Corporation
    Inventors: Taichi Asano, Masaki Harada, Shoei Teshima, Makoto Ando, Wataru Narita, Naoki Yamashita
  • Patent number: 10590555
    Abstract: 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: Grant
    Filed: November 29, 2017
    Date of Patent: March 17, 2020
    Assignee: UACJ Corporation
    Inventors: Yukio Honkawa, Junji Nunomura, Yoichi Kojima
  • Publication number: 20200070286
    Abstract: 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: Application
    Filed: December 1, 2017
    Publication date: March 5, 2020
    Applicant: UACJ Corporation
    Inventors: Tatsuya Ide, Tomohiro Shoji, Dai Yamamoto
  • Patent number: 10576772
    Abstract: 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: Grant
    Filed: February 3, 2016
    Date of Patent: March 3, 2020
    Assignees: UACJ CORPORATION, UACJ FOIL CORPORATION, THINK LABORATORY CO., LTD.
    Inventors: Hiroshi Nishio, Yukie Kitada, Tatsuo Shigeta
  • Patent number: 10544494
    Abstract: 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: Grant
    Filed: May 23, 2017
    Date of Patent: January 28, 2020
    Assignee: UACJ CORPORATION
    Inventors: Yuya Sawa, Minoru Hayashi
  • Publication number: 20200024712
    Abstract: 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: Application
    Filed: September 28, 2017
    Publication date: January 23, 2020
    Applicants: UACJ Corporation, UACJ Corporation
    Inventor: Shingo Iwamura
  • Publication number: 20200010934
    Abstract: 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: Application
    Filed: February 22, 2018
    Publication date: January 9, 2020
    Applicant: UACJ Corporation
    Inventors: Takashi KUBO, Tatsuya YAMADA
  • Patent number: 10513236
    Abstract: 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: Grant
    Filed: December 22, 2016
    Date of Patent: December 24, 2019
    Assignee: UACJ Corporation
    Inventors: Tomoya Yokota, Yutaka Yamada, Yoshiharu Sakai
  • Publication number: 20190345587
    Abstract: 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: Application
    Filed: December 1, 2017
    Publication date: November 14, 2019
    Applicant: UACJ Corporation
    Inventors: Wataru Nakagawa, Atsushi Fukumoto, Junichi Mochizuki, Tatsuya Ide
  • Patent number: 10475547
    Abstract: 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: Grant
    Filed: April 8, 2015
    Date of Patent: November 12, 2019
    Assignee: UACJ CORPORATION
    Inventors: Hidetaka Nakanishi, Mineo Asano
  • Publication number: 20190330752
    Abstract: 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: Application
    Filed: July 9, 2019
    Publication date: October 31, 2019
    Applicant: UACJ CORPORATION
    Inventors: Junji Nunomura, Yukio Honkawa, Yoichi Kojima, Mikito Ueda