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：US20160116234A1

公开(公告)日：2016-04-28

申请号：US14895204

申请日：2014-06-02

Applicant: UACJ Corporation

Inventor： Takashi MURASE ,  Kotaro KITAWAKI ,  Tomohito KUROSAKI ,  Junji NINOMIYA

IPC: F28F21/08 ,  F28F1/10

CPC classification number: F28F21/084 ,  B22D11/003 ,  B22D11/0622 ,  C22C21/00 ,  C22C21/02 ,  C22F1/043 ,  F28F1/10 ,  F28F1/12 ,  F28F19/06

Abstract: There is provided a heat exchanger and a fin material for the heat exchanger that can suppress occurrence of hollow corrosion in a fin and hold cooling performance for a long period of time under a high corrosion environment. The heat exchanger includes an aluminum tube through which a working fluid circulates and an aluminum fin which is bonded to the tube. The fin has a region B around a grain boundary, and a region A around the region B. In the region B, 5.0×104 pieces/mm2 less of Al—Fe—Mn—Si based intermetallic compound, each of which has equivalent circle diameters of 0.1 to 2.5 μm, are present. In the region A, 5.0×104 pieces/mm2 to 1.0×10′ pieces/mm2 of Al—Fe—Mn—Si based intermetallic compound, each of which has equivalent circle diameters of 0.1 to 2.5 μm, are present.

Abstract translation: 提供了用于热交换器的热交换器和翅片材料，其可以在高腐蚀环境下长时间地抑制翅片中的中空腐蚀的发生并保持冷却性能。 热交换器包括工作流体循环的铝管和结合到管的铝翅片。 翅片具有围绕晶界的区域B和区域B周围的区域A.在区域B中，Al x Fe-Mn-Si系金属间化合物的5.0×104个/ mm 2以下具有相同的圆 存在0.1〜2.5μm的直径。 在区域A中，存在Al x Fe-Mn-Si系金属间化合物的5.0×10 4个/ mm 2〜1.0×10 6个/ mm 2，各自具有0.1〜2.5μm的当量圆直径。