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. 21, 2012
Filed:
May. 03, 2011
Shimpei Kimura, Moka, JP;
Toshiki Ueda, Moka, JP;
Takahiro Izumi, Moka, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
An aluminum alloy brazing sheet includes a core material containing Si, Cu and Mn by a predetermined amount, the balance being Al and inevitable impurities, a sacrificial anode material disposed on one face side of the core material and containing Si, Zn and Mg by a predetermined amount, the balance being Al and inevitable impurities, and a brazing filler material disposed on the other face side of the core material and formed of an aluminum alloy, and the area fraction of Zn—Mg-based intermetallic compounds with 2.0 μm or above particle size on the surface of the sacrificial anode material may be 1.0% or below. Or otherwise, in the aluminum alloy brazing sheet, the number density of Al—Cu-based intermetallic compounds with 0.5 μm or above particle size inside the core material may be 1.0 piece/μmor below.