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:
Aug. 13, 2019
Filed:
Dec. 14, 2015
Mitsubishi Aluminum Co., Ltd., Minato-ku, Tokyo, JP;
Michihide Yoshino, Shizuoka, JP;
Masakazu Edo, Shizuoka, JP;
MITSUBISHI ALUMINUM CO., LTD., Tokyo, JP;
Abstract
[Problem] There is provided an aluminum alloy fin material with high strength, superior brazability and superior corrosion resistance. [Solving means] An aluminum alloy fin material has a composition, in % by mass, of the following: Zr: 0.05 to 0.25%, Mn: 1.3 to 1.8%, Si: 0.7 to 1.3%, Fe: 0.10 to 0.35%, and Zn: 1.2 to 3.0%, the remainder being Al and inevitable impurities. The aluminum alloy fin material has a solidus temperature of 615° C. or higher, a tensile strength after brazing of 135 MPa or higher, a pitting potential after brazing in the range of −900 to −780 mV, and an average crystal grain diameter in a rolled surface after brazing in the range of 200 μm to 1,000 μm.