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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 10625379 B1

PDFFull Text
Date of Patent:
Apr. 21, 2020

Filed:

Jul. 08, 2016

Aluminum alloy cladding material, manufacturing method therefor, and heat exchanger using said aluminum alloy cladding material

Applicant:

Uacj Corporation, Tokyo, JP;

Inventors:

Taichi Asano, Kariya, JP;

Masaki Harada, Kariya, JP;

Shoei Teshima, Kariya, JP;

Makoto Ando, Tokyo, JP;

Wataru Narita, Tokyo, JP;

Naoki Yamashita, Tokyo, JP;

Assignee:

UACJ Corporation, Tokyo, JP;

Attorney:

Greer Burns & Crain Ltd.

Primary Examiner:

Daniel J Schleis

Int. Cl.
CPC ...
B23K 35/28 (2006.01); F28F 21/08 (2006.01); B32B 15/01 (2006.01); C22C 21/00 (2006.01); F28D 1/03 (2006.01); B23K 35/02 (2006.01); C22F 1/04 (2006.01); C22C 21/14 (2006.01); B32B 15/20 (2006.01); C22C 21/02 (2006.01); C22C 21/08 (2006.01); C22C 21/10 (2006.01); C22F 1/047 (2006.01); C22F 1/053 (2006.01); F28D 9/00 (2006.01);
U.S. Cl.
CPC ...
B23K 35/288 (2013.01); B23K 35/0238 (2013.01); B23K 35/286 (2013.01); B32B 15/016 (2013.01); B32B 15/20 (2013.01); C22C 21/00 (2013.01); C22C 21/02 (2013.01); C22C 21/08 (2013.01); C22C 21/10 (2013.01); C22C 21/14 (2013.01); C22F 1/04 (2013.01); C22F 1/047 (2013.01); C22F 1/053 (2013.01); F28D 1/0325 (2013.01); F28F 21/084 (2013.01); F28F 21/089 (2013.01); F28D 9/0025 (2013.01); F28F 2245/00 (2013.01); F28F 2275/04 (2013.01); Y10T 428/12764 (2015.01);
Abstract

Provided is an aluminum alloy clad material including an aluminum alloy core material and a first brazing filler metal that is clad on one surface or both surfaces of the core material, wherein the core material and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 0.1 μm in the first brazing filler metal before brazing heating is at least 1.0×10pieces/mm, and the existence density of Al—Mn based intermetallic compounds having a circle-equivalent diameter of at least 2 μm in the first brazing filler metal after brazing heating is at least 300 pieces/mm. Further provided are a method for producing the aluminum alloy clad material and a heat exchanger employing the aluminum alloy clad material.

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