The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 2026
Filed:
Feb. 13, 2023
Uacj Corporation, Tokyo, JP;
Tomoki Yamayoshi, Tokyo, JP;
Hidetoshi Kumagai, Tokyo, JP;
Shogo Yamada, Kariya, JP;
Nobuhiro Homma, Kariya, JP;
Taro Fukuda, Kariya, JP;
Yosuke Uchida, Kariya, JP;
UACJ CORPORATION, Tokyo, JP;
Abstract
Provided is an aluminum alloy brazing sheet in which a first cladding material/a first internal brazing material/core material are stacked in this order, the aluminum alloy brazing sheet is used for brazing in an inert gas atmosphere without using a flux, the first internal brazing material is formed of an aluminum alloy comprising 6.00 mass % to 13.00 mass % of Si, more than 0.50 mass % and 4.50 mass % or less of Mg, and 0.010 mass % to 0.50 mass % of Bi, and formed with the balance being Al and inevitable impurities, and the first cladding material is formed of an aluminum alloy comprising 6.00 mass % to 13.00 mass % of Si and more than 0.050 mass % and 0.50 mass % or less of Mg, having a Bi content of 1.00 mass % or less, and formed with the balance being Al and inevitable impurities. According to the present invention, an aluminum alloy brazing sheet having excellent brazeability in brazing in an inert gas atmosphere without using a flux can be provided.