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.