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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.:

US 10682730 B1

PDFFull Text
Date of Patent:
Jun. 16, 2020

Filed:

Jun. 29, 2016

Aluminum alloy brazing sheet

Applicant:

Uacj Corporation, Tokyo, JP;

Inventors:

Yasunaga Itoh, Tokyo, JP;

Tomoki Yamayoshi, Tokyo, JP;

Yutaka Yanagawa, Tokyo, JP;

Assignee:

UACJ CORPORATION, Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian

Primary Examiner:

Daniel J Schleis

Int. Cl.
CPC ...
B23K 35/28 (2006.01); B23K 35/22 (2006.01); C22C 21/00 (2006.01); F28F 21/08 (2006.01); B23K 35/02 (2006.01); B32B 15/01 (2006.01); C22C 21/02 (2006.01); B23K 101/14 (2006.01); F28F 3/02 (2006.01); F28F 1/02 (2006.01);
U.S. Cl.
CPC ...
B23K 35/288 (2013.01); B23K 35/0238 (2013.01); B23K 35/22 (2013.01); B23K 35/28 (2013.01); B32B 15/016 (2013.01); C22C 21/00 (2013.01); C22C 21/02 (2013.01); F28F 21/089 (2013.01); B23K 2101/14 (2018.08); F28F 1/02 (2013.01); F28F 3/025 (2013.01); F28F 21/084 (2013.01); Y10T 428/12764 (2015.01);
Abstract

An aluminum alloy brazing sheet used for brazing aluminum, without using a flux, in an inert gas atmosphere or vacuum is formed by arranging a brazing material on one side or both sides of a core material made of pure aluminum or aluminum alloy, the brazing material including 6% to 13% by mass of Si and the balance being Al and inevitable impurities, and performing cladding with an intermediate material interposed between the core material and the brazing material, the intermediate material including 0.01% to 1.5% by mass of Bi, 1.5% to 13% by mass of Si, and the balance being Al and inevitable impurities, the intermediate material having a thickness of 2% to 35% of a thickness of the brazing material, wherein one or both of the intermediate material and the core material includes 0.4% to 6% by mass of Mg.

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