Patents Assigned to UACJ CORPORATION
  • Publication number: 20190119790
    Abstract: An aluminum-alloy foil that enables to satisfy both of high elongation and high strength even in the case of reducing the foil thickness. The chemical composition of the aluminum-alloy foil contains, in mass %, Fe: 1.0% or more and 2.0% or less, Cu: 0.1% or more and 0.5% or less, and Mn: 0.05% or less, the remainder being Al and unavoidable impurities. The aluminum-alloy foil has a foil thickness of 20 ?m or less, and satisfies the relation El?100×t/UTS. Here, t represents a foil thickness (?m), UTS represents a tensile strength (MPa), and El represents an elongation (%).
    Type: Application
    Filed: March 9, 2017
    Publication date: April 25, 2019
    Applicant: UACJ CORPORATION
    Inventors: Yuichi TANAKA, Tetsuya MOTOI
  • Publication number: 20190112691
    Abstract: Provided are: an Al—Mg—Si-based aluminum alloy material including an aluminum alloy including 0.10 to 1.50 mass % (hereinafter, “%”) Si and 0.10 to 2.00% of Mg, in which an oxide coating film mainly containing aluminum is formed on a surface of the aluminum alloy material, a Mg—Si-based crystallized product having an equivalent circle diameter of 0.1 to 5.0 ?m is contained at 100 to 150,000 particles/mm2, a Mg—Si-based crystallized product having an equivalent circle diameter of more than 5.0 ?m and 10.0 ?m or less is contained at 5 particles/mm2 or less, and the oxide coating film includes Si at a maximum concentration of 0.1 to 40.0% and Mg at a maximum concentration of 0.1 to 20.0%; a method for producing the aluminum alloy material; and an aluminum alloy clad material, in which the aluminum alloy material is clad on at least one surface of an aluminum core material.
    Type: Application
    Filed: April 4, 2017
    Publication date: April 18, 2019
    Applicant: UACJ Corporation
    Inventors: Takatoshi SHIMADA, Kazuko TERAYAMA, Yoshiyuki OYA
  • Publication number: 20190105936
    Abstract: The present invention provides a coating material that can improve gravure printing characteristics of the printing surface of a printing substrate to favorably transfer an ink fed in the cell of a gravure printing roll to the printing surface of the printing substrate, thereby achieving the beautiful gravure printing. The coating material of the present invention is a coating material for forming a surface layer serving as a printing surface on a printing substrate to which gravure printing is to be applied, and the coating material is characterized by including a pigment including an inorganic particulate and a skin layer that is formed on a surface of the inorganic particulate and includes an organic compound.
    Type: Application
    Filed: March 24, 2017
    Publication date: April 11, 2019
    Applicant: UACJ CORPORATION
    Inventors: Hiroshi NISHIO, Osamu KATOH, Yukie KITADA
  • Patent number: 10221472
    Abstract: 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.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: March 5, 2019
    Assignee: UACJ CORPORATION
    Inventors: Hidetaka Nakanishi, Kazushige Norikane, Mineo Asano
  • Publication number: 20190066724
    Abstract: An aluminum alloy substrate for a magnetic disk, wherein the sum of the circumferences of second phase particles having the longest diameter of 4 ?m or more and 30 ?m or less in the metal microstructure is 10 mm/mm2 or more.
    Type: Application
    Filed: October 25, 2018
    Publication date: February 28, 2019
    Applicants: UACJ CORPORATION, FURUKAWA ELECTRIC CO., LTD.
    Inventors: Toshihiro NAKAMURA, Takashi NAKAYAMA, Kimie IMAKAWA, Wataru KUMAGAI, Sadayuki TODA, Kotaro KITAWAKI, Takuya MURATA, Yu MATSUI, Makoto YONEMITSU, Hideyuki HATAKEYAMA
  • Patent number: 10208370
    Abstract: An aluminum alloy contains, in mass percent, Zn: 2.5% or more and less than 5.0%, Mg: 2.2% or more and 3.0% or less, and Ti: 0.001% or more and 0.05% or less, Cu: 0.10% or less, Zr: 0.10% or less, Cr: 0.03% or less, Fe: 0.30% or less, Si: 0.30% or less, and Mn: 0.03% or less, the remainder being composed of Al and unavoidable impurities. In addition, the tensile strength is 380 MPa or more; the electrical conductivity is 38.0% IACS or more; and the metallographic structure is composed of a recrystallized structure.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: February 19, 2019
    Assignee: UACJ CORPORATION
    Inventors: Hidenori Hatta, Satoshi Udagawa, Takero Watanabe
  • Publication number: 20190032972
    Abstract: A heat-exchanger fin material which has a substrate composed of aluminum and a coating film formed on the substrate. The coating film is composed of a one-layered or two or more-layered coating and has a hydrophilic colored coating on its outermost surface. The hydrophilic colored coating contains an acrylic-modified epoxy resin (A), a melamine resin (B), a perfluoroalkyl group-containing alcohol resin (C), and a pigment (D). The content of the pigment (D) in the hydrophilic colored coating is 1 to 80 mg/m2. The water-contact angle of the hydrophilic colored coating is 20° or less. The elution ratio of the hydrophilic colored coating into running water is 1 mass % or less after an immersion test in which the heat-exchanger fin material is immersed in running water with a flow rate of 5 L/hour for 24 hours. A heat exchanger which includes a fin composed of the aforesaid heat-exchanger fin material.
    Type: Application
    Filed: March 24, 2017
    Publication date: January 31, 2019
    Applicant: UACJ CORPORATION
    Inventors: Yoshiya SEKO, Tomoaki TOYAMA, Kaoru UEDA
  • Publication number: 20190024218
    Abstract: A high-strength, highly-elongatable aluminum-alloy foil contains, in mass %, Fe: 1.0% or more and 2.0% or less and Mn: 0.05% or less, and unavoidable impurities. The aluminum-alloy foil has an average crystal-grain size at a foil surface of 2.5 ?m or less, and a ratio of the surface-area percentages of the crystal orientations A{112}<111>/A{101}<121> is 3.0 or more. A{112}<111> is the percentage, with respect to the total surface area, of the surface areas of crystal grains in which the crystal orientation is in a range within 15° from {112}<111> in an orientation-mapping image of the foil surface produced by electron backscatter diffraction. A{101}<121> is the percentage, with respect to the total surface area, of the surface areas of the crystal grains in which the crystal orientation is in a range within 15° from {101}<121> in the orientation-mapping image.
    Type: Application
    Filed: January 24, 2017
    Publication date: January 24, 2019
    Applicant: UACJ Corporation
    Inventors: Yuichi TANAKA, Tetsuya MOTOI
  • Patent number: 10183362
    Abstract: 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 ?m equivalent circle diameter Al—Mn—Si—Fe-based intermetallic compound density is 3.0×105 to 1.0×106 pieces/cm2, and the 0.1 ?m to less than 1 ?m equivalent circle diameter Al—Mn—Si—Fe-based intermetallic compound density is at least 1.0×107 pieces/cm2. The sacrificial anode material includes an aluminum alloy containing Si: 0.1-0.6%, Zn: 1.0-5.0%, and Ni: 0.1-2.0%.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: January 22, 2019
    Assignee: UACJ Corporation
    Inventor: Wataru Narita
  • Publication number: 20190011201
    Abstract: Use of a heat transfer tube in a damp environment in air-conditioning equipment and exposed to corrosive action caused by a corrosive medium comprising at least one lower carboxylic acid, the heat transfer tube a copper tube comprising 0.10-1.0% by weight of P and the balance consisting of Cu and inevitable impurities. The corrosive action progresses in the form of an ants' nest from an outer surface of the heat transfer tube in a direction of its wall thickness, wherein. Also, use of a copper tube comprising 0.10-1.0% by weight of P and the balance consisting of Cu and inevitable impurities for improving corrosion-resistance against ant nest corrosion caused by a corrosive medium consisting of a lower carboxylic acid in a damp environment, method of inhibiting ants' nest corrosion in a heat transfer tube, and a method of positioning a tube in an air conditioning apparatus or a refrigeration apparatus.
    Type: Application
    Filed: September 12, 2018
    Publication date: January 10, 2019
    Applicants: UACJ Corporation, UACJ Copper Tube Corporation
    Inventors: Kozo KAWANO, Shinobu SUZUKI
  • Patent number: 10161693
    Abstract: An aluminum alloy fin material for heat exchangers, containing 0.5 to 1.5 mass % of Si; more than 1.0 mass % but not more than 2.0 mass % of Fe; 0.4 to 1.0 mass % of Mn; and 0.4 to 1.0 mass % of Zn, 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 ?m is less than 1×107 particles/mm2, and that a density of second phase particles having a circle-equivalent diameter of 0.1 ?m or more is 1×105 particles/mm2 or more, wherein a tensile strength before braze-heating, TSB (N/mm2), a tensile strength after braze-heating, TSA (N/mm2), and a fin sheet thickness, t (?m), satisfy: 0.4?(TSB?TSA)/t?2.1, and wherein the sheet thickness is 150 ?m or less; and a method of producing the same.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: December 25, 2018
    Assignee: UACJ CORPORATION
    Inventors: Atsushi Fukumoto, Junichi Mochizuki, Akio Niikura
  • Publication number: 20180363995
    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: Application
    Filed: August 23, 2018
    Publication date: December 20, 2018
    Applicant: UACJ Corporation
    Inventors: Wataru NAKAGAWA, Satoshi TANAKA
  • Patent number: 10150186
    Abstract: 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. The filler metal layer is composed of an aluminum alloy that contains Si: 4.0-13.0 mass % and Bi: 0.01-0.3 mass %, and further contains Li: 0.004-0.08 mass % and/or Be: 0.006-0.12 mass %, the filler metal layer containing less than 0.1 mass % Mg. The hollow aluminum structure is assembled such that the filler metal layer is present at locations that will form both an interior-facing brazed joint and an exterior-facing brazed joint. Then, flux is applied onto the filler metal layer at the location that will form the exterior brazed joint, and the hollow aluminum structure heated in an inert gas atmosphere to form the interior brazed joint and the exterior brazed joint.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: December 11, 2018
    Assignee: UACJ CORPORATION
    Inventors: Yutaka Yanagawa, Yasunaga Itoh, Tomoki Yamayoshi
  • Patent number: 10145630
    Abstract: An aluminum alloy fin material for heat exchangers, containing 0.5 to 1.5 mass % of Si; 0.1 to 1.0 mass % of Fe; 0.8 to 1.8 mass % of Mn; and 0.4 to 2.5 mass % of Zn, 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 ?m is less than 1×107 particles/mm2, and that a density of second phase particles having a circle-equivalent diameter of 0.1 ?m or more is 5×104 particles/mm2 or more, wherein a tensile strength before braze-heating, TSB (N/mm2), a tensile strength after braze-heating, TSA (N/mm2), and a sheet thickness of the fin material, t (?m), satisfy a relationship: 0.4?(TSB?TSA)/t?2.1, and wherein the sheet thickness is 150 ?m or less; and a method of producing the same.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: December 4, 2018
    Assignee: UACJ CORPORATION
    Inventors: Atsushi Fukumoto, Junichi Mochizuki, Akio Niikura
  • Publication number: 20180313610
    Abstract: An extruded aluminum flat multi-hole tube manufactured by extrusion molding includes therein a plurality of refrigerant passages extending in a tube length direction and including an upper wall surface and a lower wall surface opposed to each other and a pair of opposed sidewall surfaces. A ridge extending in the tube length direction is formed only on the upper wall surface of the refrigerant passage. The height of the ridge is 5 to 25% of the vertical width of the refrigerant passage. The ratio of the horizontal width at ½ the height of the ridge with respect to the horizontal width of the refrigerant passage is 0.05 to 0.30. The ratio of the horizontal width per inter-ridge flat portion of the upper wall surface with respect to the horizontal width of the refrigerant passage is 0.20 or less.
    Type: Application
    Filed: October 28, 2016
    Publication date: November 1, 2018
    Applicants: UACJ Corporation, UACJ Extrusion Corporation
    Inventors: Sayo Fukada, Mamoru Houfuku
  • Publication number: 20180313616
    Abstract: Provided is a corrosion resistant copper tube which can exhibit a further improved resistance to ant nest corrosion, and which is suitably usable as a heat transfer tube and refrigerant tube in air-conditioning equipment and refrigerating equipment. The copper tube is formed of a copper material comprising a copper alloy consisting of 0.15-0.50% by weight of phosphorus and the balance being copper and impurities, wherein the copper material includes phosphorus oxide particles, such that a number density of particles having a circle equivalent diameter of not less than 0.1 ?m among the phosphorus oxide particles is not more than 50000/mm2.
    Type: Application
    Filed: June 8, 2018
    Publication date: November 1, 2018
    Applicants: UACJ CORPORATION, UACJ COPPER TUBE CORPORATION
    Inventors: Yoshihiko KYO, Hirokazu TAMAGAWA, Yoshiyuki OYA
  • Publication number: 20180304415
    Abstract: A brazing method of performing brazing on an aluminum alloy brazing sheet by increasing a temperature from 200° C. to a brazing temperature in an inert gas atmosphere with a dew point controlled to ?20° C. or lower, thereafter increasing the temperature in an inert gas atmosphere with a dew point controlled to ?40° C. or lower and an oxygen concentration controlled to 100 ppm or lower, and performing brazing heating in an inert gas atmosphere at a temperature of 580° C. to 615° C. without using flux. The aluminum alloy brazing sheet has a structure in which one or both of a core material and a brazing material includes any one or two or more types of X atoms (X is Mg, Li, Be, Ca, Ce, La, Y, and Zr), and oxide particles including the X atoms and having a volume change ratio of 0.99 or lower are formed on a surface thereof.
    Type: Application
    Filed: October 13, 2016
    Publication date: October 25, 2018
    Applicant: UACJ Corporation
    Inventors: Tomoki Yamayoshi, Atsushi Fukumoto
  • Publication number: 20180297138
    Abstract: An aluminum alloy brazing sheet used for brazing in an inert gas atmosphere without using flux includes a core material of aluminum or aluminum alloy, and a brazing material of aluminum alloy including Si of 4.0 mass % to 13.0 mass % and cladding one side surface or both side surfaces of the core material. One or both of the core material and the brazing material includes any one or two or more types of X atoms (X is Mg, Li, Be, Ca, Ce, La, Y, and Zr). The aluminum alloy brazing sheet is a brazing sheet in which oxide particles including the X atoms and having a volume change ratio of 0.99 or lower with respect to an oxide film before brazing heating are formed on a surface thereof, by brazing heating.
    Type: Application
    Filed: October 13, 2016
    Publication date: October 18, 2018
    Applicant: UACJ Corporation
    Inventors: Tomoki Yamayoshi, Atsushi Fukumoto
  • Publication number: 20180298932
    Abstract: A welded joint comprising an aluminum-based base material comprising an aluminum alloy or pure aluminum and a copper-based base material comprising a copper alloy or pure copper joined by a weld metal portion is provided. The weld metal portion contains copper in ranges of less than 75% by mass and silicon in ranges of less than 13% by mass and has a higher content of copper and silicon than the aluminum-based base material.
    Type: Application
    Filed: April 10, 2018
    Publication date: October 18, 2018
    Applicant: UACJ Corporation
    Inventors: Takashi Murase, Shohei Yomogida, Toshihiko Fukuda
  • Patent number: 10099320
    Abstract: An aluminum alloy brazing sheet having high corrosion resistance is provided, which develops the sacrificial anticorrosion effect in both surfaces of the sheet, which has the brazing function in one of both the surfaces, and which prevents the occurrence of preferential corrosion. A channel forming component for a vehicular heat exchanger is also provided by utilizing the aluminum alloy brazing sheet. An aluminum alloy brazing sheet having high corrosion resistance includes an aluminum alloy core, a filler material clad on one surface of the core, and a sacrificial anode material clad on the other surface of the core, wherein the filler material, the sacrificial anode material, and the core have respective predetermined alloy compositions. A channel forming component for a vehicular heat exchanger is manufactured using the aluminum alloy brazing sheet having high corrosion resistance.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: October 16, 2018
    Assignees: Denso Corporation, UACJ Corporation
    Inventors: Sadayuki Kamiya, Shota Terachi, Kenji Negura, Makoto Ando, Atsushi Fukumoto, Yoshiyuki Oya, Akio Niikura