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:
Jan. 14, 2020
Filed:
Oct. 13, 2015
Applicant:
Alcoa Inc., Pittsburgh, PA (US);
Inventor:
Baolute Ren, Lititz, PA (US);
Assignee:
ARCONIC INC., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 35/02 (2006.01); B23K 35/28 (2006.01); C22C 21/02 (2006.01); C22C 21/10 (2006.01); C22C 21/14 (2006.01); C22C 21/16 (2006.01); C22C 21/18 (2006.01); B32B 15/01 (2006.01);
U.S. Cl.
CPC ...
B23K 35/288 (2013.01); B23K 35/0238 (2013.01); B32B 15/016 (2013.01); B32B 15/017 (2013.01); C22C 21/02 (2013.01); C22C 21/10 (2013.01); C22C 21/14 (2013.01); C22C 21/16 (2013.01); C22C 21/18 (2013.01); Y10T 428/12764 (2015.01);
Abstract
In one embodiment, a brazing sheet comprises: a core layer, a braze liner on the first side of the core layer; and a waterside liner on the second side of the core layer. The core layer is comprised of a 3xxx series aluminum alloy. The waterside liner is an aluminum alloy comprising: 7-20 wt % Zn; up to 0.25 wt % Si; up to 0.1 wt % Cu; up to 0.25 wt % Mn; up to 0.1 wt % Mg; and up to 0.1 wt % Cr. In some embodiments, the brazing sheet has a thickness of 60-180 microns. In some embodiments, the waterside liner comprises 1-15% of the thickness of the brazing sheet.