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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 10634439 B1

PDFFull Text
Date of Patent:
Apr. 28, 2020

Filed:

Aug. 23, 2018

Aluminum alloy brazing sheet for a heat exchanger, and process for producing the same

Applicant:

Uacj Corporation, Tokyo, JP;

Inventors:

Wataru Nakagawa, Chiyoda-Ku, JP;

Satoshi Tanaka, Chiyoda-Ku, JP;

Assignee:

UACJ Corporation, Chiyoda-Ku, JP;

Attorney:

Burr & Brown, PLLC

Primary Examiner:

Daniel J Schleis

Int. Cl.
CPC ...
B21B 1/22 (2006.01); F28F 21/08 (2006.01); C22C 21/00 (2006.01); C22F 1/04 (2006.01); C22C 21/04 (2006.01); B23K 1/19 (2006.01); B23K 1/00 (2006.01); B23K 35/02 (2006.01); F28F 1/12 (2006.01); B23K 1/008 (2006.01); B32B 15/01 (2006.01); B23K 1/20 (2006.01); B23K 35/28 (2006.01); C22C 21/02 (2006.01); C22C 21/10 (2006.01); B23K 103/10 (2006.01); B23K 101/14 (2006.01); F28D 1/053 (2006.01);
U.S. Cl.
CPC ...
F28F 21/084 (2013.01); B21B 1/22 (2013.01); B23K 1/008 (2013.01); B23K 1/0012 (2013.01); B23K 1/19 (2013.01); B23K 1/203 (2013.01); B23K 35/0238 (2013.01); B23K 35/286 (2013.01); B23K 35/288 (2013.01); B32B 15/016 (2013.01); C22C 21/00 (2013.01); C22C 21/02 (2013.01); C22C 21/04 (2013.01); C22C 21/10 (2013.01); C22F 1/04 (2013.01); F28F 1/12 (2013.01); F28F 21/089 (2013.01); B23K 2101/14 (2018.08); B23K 2103/10 (2018.08); F28D 1/0535 (2013.01); Y10T 428/12764 (2015.01);
Abstract

Provided are an aluminum alloy brazing sheet for heat exchangers, which exhibits excellent formability and brazeability, and an advantageous process for producing the same. The aluminum alloy brazing sheet for heat exchangers according to the present invention is configured such that: the aluminum alloy composition of a core material and the aluminum alloy composition and temper of a filler material are respectively controlled; and a core material portion of the brazing sheet has a specific electric resistivity at room temperature and a specific dispersion ratio of second phase particles. The brazing sheet is configured to further exhibit certain properties in terms of a work hardening exponent (n-value) where a nominal strain is within a range of 1%-2% and in terms of a push-in depth when a penetration crack is generated in a punch stretch forming test using a round-head punch having a diameter of 50 mm.

Find Patent Forward Citations

Nakagawa, Wataru. (2020). Aluminum alloy brazing sheet for a heat exchanger, and process for producing the same (U.S. Patent No. 10634439). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10634439

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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