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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 10737357 B1

PDFFull Text
Date of Patent:
Aug. 11, 2020

Filed:

May. 24, 2017

Brazing sheet, manufacturing method thereof, and aluminum structure brazing method

Applicant:

Uacj Corporation, Tokyo, JP;

Inventors:

Yasunaga Itoh, Aichi, JP;

Shoichi Sakoda, Aichi, JP;

Atsushi Fukumoto, Aichi, JP;

Assignee:

UACJ CORPORATION, Tokyo, JP;

Attorneys:

J-TEK Law PLLC

Jeffrey D. Tekanic

Scott T. Wakeman

Primary Examiner:

Kiley S Stoner

Int. Cl.
CPC ...
B23K 1/00 (2006.01); B23K 35/02 (2006.01); B23K 1/20 (2006.01); B23K 35/28 (2006.01); B32B 15/01 (2006.01); C22C 21/02 (2006.01); C22C 21/06 (2006.01); C23F 1/20 (2006.01); B23K 31/02 (2006.01); B23K 35/22 (2006.01); C22C 21/00 (2006.01); B23K 1/19 (2006.01); B23K 103/10 (2006.01);
U.S. Cl.
CPC ...
B23K 35/0238 (2013.01); B23K 1/00 (2013.01); B23K 1/19 (2013.01); B23K 1/203 (2013.01); B23K 31/02 (2013.01); B23K 35/22 (2013.01); B23K 35/28 (2013.01); B23K 35/288 (2013.01); B32B 15/016 (2013.01); C22C 21/00 (2013.01); C22C 21/02 (2013.01); C22C 21/06 (2013.01); C23F 1/20 (2013.01); B23K 1/0012 (2013.01); B23K 2103/10 (2018.08);
Abstract

A brazing sheet is provided for use in brazing performed in an inert gas atmosphere both using flux and without using flux. The brazing sheet includes an aluminum-based core, an intermediate material layered on the core and being composed of an aluminum alloy that contains Mg: 0.40-3.0 mass %, and a filler metal layered on the intermediate material and being composed of an aluminum alloy that contains Si: 6.0-13.0 mass % and Mg: less than 0.050 mass %. The brazing sheet satisfies the formula below where M [mass %] is the Mg content in the intermediate material, ti [μm] is the thickness of the intermediate material, and tf [μm] is the thickness of the filler metal:≥10.15×ln()+3.7.

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