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:
Jun. 13, 2023
Filed:
Sep. 30, 2022
Applicant:
Arconic Technologies Llc, Pittsburgh, PA (US);
Inventors:
Stephen F. Baumann, Lancaster, PA (US);
Michael P. Danz, Lancaster, PA (US);
Ning Sun, Framingham, MA (US);
Assignee:
ARCONIC TECHNOLOGIES LLC, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 35/28 (2006.01); B23K 35/02 (2006.01); B23K 1/00 (2006.01); B23K 35/38 (2006.01); C22C 21/08 (2006.01); F28F 21/08 (2006.01); B32B 15/01 (2006.01); B23K 103/10 (2006.01); B23K 101/14 (2006.01);
U.S. Cl.
CPC ...
B23K 35/0238 (2013.01); B23K 1/0012 (2013.01); B23K 35/286 (2013.01); B23K 35/383 (2013.01); B32B 15/016 (2013.01); C22C 21/08 (2013.01); F28F 21/084 (2013.01); F28F 21/089 (2013.01); B23K 2101/14 (2018.08); B23K 2103/10 (2018.08); F28F 2275/04 (2013.01); Y10T 428/12764 (2015.01);
Abstract
An aluminum alloy brazing sheet has a 3XXX, 1XXX or 6XXX core, an interliner and a 4XXX brazing layer without added Mg. The interliner has Bi and Mg, the magnesium migrating to the surface of the brazing sheet during brazing and reducing the aluminum oxide to facilitate brazing without flux in a controlled inert atmosphere with reduced oxygen.