公开(公告)号：US20170137919A1

公开(公告)日：2017-05-18

申请号：US15411739

申请日：2017-01-20

Applicant: UACJ CORPORATION

Inventor： Akio NIIKURA ,  Kazuko FUJITA ,  Takashi MURASE ,  Yoshiyuki OYA ,  Tomohito KUROSAKI

IPC: C22C21/02 ,  F28F21/08 ,  B23K20/233 ,  F28F1/12

CPC classification number: C22C21/02 ,  B23K20/14 ,  B23K20/2333 ,  B23K2101/14 ,  B23K2103/10 ,  B32B15/016 ,  B32B15/017 ,  C22C1/02 ,  C22C21/00 ,  C22C21/04 ,  C22C21/10 ,  C22C21/14 ,  C22C21/18 ,  C22F1/00 ,  C22F1/04 ,  C22F1/043 ,  C22F1/057 ,  F28F1/022 ,  F28F1/126 ,  F28F21/084 ,  F28F2215/00 ,  F28F2275/04 ,  Y10T428/12764

Abstract: 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.

公开(公告)号：US20230212776A1

公开(公告)日：2023-07-06

申请号：US17927998

申请日：2021-06-11

Applicant: National University Corporation Hokkaido University ,  UACJ Corporation

Inventor： Tatsuya KIKUCHI ,  Miu SATO ,  Junji NUNOMURA ,  Yoshiyuki OYA

IPC: C25D11/06 ,  C25D11/14

CPC classification number: C25D11/06 ,  C25D11/14

Abstract: An aluminum member (1) includes: a base material (2) composed of aluminum or an aluminum alloy; and an anodic oxide film (3) formed on a surface of the base material. The anodic oxide film includes: an amorphous layer (31), which is composed of an amorphous aluminum oxide and is formed on the base material (2); and a crystal layer (32), which is composed of a crystalline aluminum oxide and is formed on the amorphous layer (31). The aluminum member (1) can be obtained by forming the anodic oxide film (3) on the base material (2) by performing an anodization process on the base material (2) in an electrolytic solution, which contains boron atoms and has a pH of 7.0-12.0.

公开(公告)号：US20190003018A1

公开(公告)日：2019-01-03

申请号：US16005684

申请日：2018-06-12

Applicant: UACJ Extrusion Corporation ,  UACJ CORPORATION ,  DENSO AIR SYSTEMS CORPORATION

Inventor： Satoshi WAKAGURI ,  Yoshiyuki OYA ,  Takuya CHINO

IPC: C22C21/10 ,  F16L9/02 ,  C22F1/05

Abstract: An aluminum alloy-made connector capable of preventing corrosion in a desired region even when being caulking-jointed to a piping member, a piping member for connecting a heat exchanger including the connector, and methods for manufacturing these are provided. The aluminum alloy-made connector is configured by an aluminum alloy extrusion material containing 0.2% to 0.8% (mass %, the same shall apply hereinafter) of Si, 0.45% to 0.9% of Mg, xZn% of Zn, and 0.001% to 0.2% of Ti, with the balance being Al and inevitable impurities. Herein, xZn satisfies {(X2+2r2)1/2+34}/38≤xZn≤2.0 (when the piping member is made of an Al—Mg—Si based aluminum alloy) or {(X2+2r2)1/2+16}/24≤xZn≤2.0 (when the piping member is made of an Al—Mn based aluminum alloy). Provided that, in the formula, X is the distance (mm) from the caulking jointed connector to the length-direction end portion of the region requiring corrosion prevention, and r is the radius (mm) corresponding to the external diameter of the piping member.

公开(公告)号：US20180313616A1

公开(公告)日：2018-11-01

申请号：US16003912

申请日：2018-06-08

Applicant: UACJ CORPORATION ,  UACJ COPPER TUBE CORPORATION

Inventor： Yoshihiko KYO ,  Hirokazu TAMAGAWA ,  Yoshiyuki OYA

IPC: F28F19/00 ,  F16L9/02 ,  C22C9/00 ,  B21C23/00 ,  B21C23/08

CPC classification number: F28F19/00 ,  B21C23/002 ,  B21C23/085 ,  C22C9/00 ,  F16L9/02

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 μm among the phosphorus oxide particles is not more than 50000/mm2.

公开(公告)号：US20190112691A1

公开(公告)日：2019-04-18

申请号：US16090738

申请日：2017-04-04

Applicant: UACJ Corporation

Inventor： Takatoshi SHIMADA ,  Kazuko TERAYAMA ,  Yoshiyuki OYA

IPC: C22C21/08 ,  B32B15/01 ,  C22C21/02 ,  C22F1/05 ,  C23C22/56 ,  C23C22/66 ,  C23C22/68

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 μm 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 μm and 10.0 μm 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.

公开(公告)号：US20170045316A1

公开(公告)日：2017-02-16

申请号：US15304533

申请日：2015-04-21

Applicant: UACJ Corporation

Inventor： Kazuko TERAYAMA ,  Yoshiyuki OYA ,  Takatoshi SHIMADA

IPC: F28F19/06 ,  B23K20/04 ,  B23K35/28 ,  C22C21/02 ,  B22D15/00 ,  C22C21/10 ,  C22F1/053 ,  C22F1/047 ,  C22F1/043 ,  F28D1/053 ,  C22C21/08

CPC classification number: F28F19/06 ,  B22D15/00 ,  B23K20/04 ,  B23K35/286 ,  C22C21/00 ,  C22C21/02 ,  C22C21/08 ,  C22C21/10 ,  C22F1/00 ,  C22F1/043 ,  C22F1/047 ,  C22F1/05 ,  C22F1/053 ,  C23C26/00 ,  F28D1/05366 ,  F28F21/08 ,  F28F2275/04

Abstract: 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. The sacrificial anode material layer comprises an aluminum alloy containing 0.10 mass % or more and less than 1.50 mass % Si, 0.10 to 2.00 mass % Mg. Present therein is 100 to 150000 pieces/mm2 of Mg—Si-based crystallized product having a circle-equivalent diameter of 0.1 to 5.0 μm, 7 pieces/mm2 or less of Mg—Si-based crystallized product having a circle-equivalent diameter of more than 5.0 μm and 10.0 μm or less in the sacrificial anode material layer.

Abstract translation: 提供具有优异的耐腐蚀性的铝包覆材料及其制造方法，用于具有优异耐腐蚀性的热交换器的铝包层材料及其制造方法，使用所述铝热交换器的铝包层材料的铝热交换器以及制造方法 因此。 所述铝包层材料包括在其至少一个表面上包覆的铝合金芯材料和牺牲阳极材料层。 牺牲阳极材料层包括含有0.10质量％以上且小于1.50质量％的Si，0.10〜2.00质量％的Mg的铝合金。 其中存在100〜150000个/ mm 2的当量圆直径为0.1〜5.0μm的Mg-Si系结晶体，7个/ mm 2以下的具有圆当量直径的Mg-Si系结晶体 在牺牲阳极材料层中超过5.0μm和10.0μm或更小。

公开(公告)号：US20160298914A1

公开(公告)日：2016-10-13

申请号：US15028518

申请日：2014-10-14

Applicant: UACJ CORPORATION

Inventor： Yoshimasa KANNO ,  Akira ICHINOSE ,  Yoshiyuki OYA

IPC: F28F19/06 ,  F28F1/22 ,  F28F21/08 ,  F28D1/053

CPC classification number: F28F19/06 ,  B23K1/00 ,  B23K1/0012 ,  B23K1/19 ,  C22C21/00 ,  C22C21/02 ,  C22C21/04 ,  C22C21/10 ,  C22F1/00 ,  C22F1/04 ,  C23F13/14 ,  C23F2201/00 ,  F25B39/00 ,  F28D1/05316 ,  F28D2021/0068 ,  F28F1/22 ,  F28F9/0243 ,  F28F9/18 ,  F28F21/084 ,  F28F21/089 ,  F28F2275/04 ,  F28F2275/064

Abstract: A core material contains Mn: 0.3-2.0 mass % (hereinafter, abbreviated to %), Si: 1.5% or less, Fe: 0.1-1.0% and Cu: 0.05-1.0%, and comprises a remainder Al and unavoidable impurities, and the sacrificial anode material contains Fe: 0.05-1.0% and Zn: 0.5-5.0%, and comprises a remainder Al and unavoidable impurities. A potential at the joint section between the header pipe and the tube is lower by 30 mV or less than potentials at the header pipe surface and the tube surface, and the potential at the joint section is lower by 30-100 mV than a potential at a position in a depth of one quarter of the overall thickness from the header pipe surface and a potential at a position in a depth of one quarter of the overall thickness from the tube surface.

Abstract translation: 芯材含有Mn：0.3〜2.0质量％（以下简称为％），Si：1.5％以下，Fe：0.1〜1.0％，Cu：0.05〜1.0％，其余为Al和不可避免的杂质， 牺牲阳极材料含有Fe：0.05-1.0％和Zn：0.5-5.0％，并且包含剩余的Al和不可避免的杂质。 集管和管之间的连接部分的电位比总管表面和管表面的电位低30 mV或更小，并且接头部分的电位低于30-100 mV时的电位 从总管表面的总厚度的四分之一深度的位置和在距离管表面的总厚度的四分之一深度的位置处的电位。