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:
Jul. 24, 2012
Filed:
Dec. 18, 2007
Toshiki Ueda, Moka, JP;
Akihiro Tsuruno, Moka, JP;
Fumihiro Koshigoe, Moka, JP;
Keiichi Okazaki, Ichinomiya, JP;
Takahiko Nagaya, Gihu, JP;
Kenji Negura, Kariya, JP;
Toshiki Ueda, Moka, JP;
Akihiro Tsuruno, Moka, JP;
Fumihiro Koshigoe, Moka, JP;
Keiichi Okazaki, Ichinomiya, JP;
Takahiko Nagaya, Gihu, JP;
Kenji Negura, Kariya, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Denso Corporation, Kariya-shi, JP;
Abstract
Disclosed is an aluminum alloy brazing sheet for heat exchangers, which has high strength after brazing, high corrosion resistance and excellent brazability. Specifically disclosed is an aluminum alloy brazing sheet () for heat exchangers comprising a core member (), a sacrificial member () formed on one side of the core member (), and a brazing filler metal () formed on the other side of the core member () and composed of an Al—Si alloy. The sacrificial member () contains 0.03-0.30% by mass of Fe, 0.01-0.40% by mass of Mn, 0.4-1.4% by mass of Si, 2.0-5.5% by mass of Zn, not more than 0.05% by mass of Mg and the balance of Al and unavoidable impurities. In addition, the sacrificial member () has a crystal grain size of 100-400 & mgr;m after 5-minute heat treatment at 600 & ring;C during the brazing.