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:
Sep. 22, 2015
Filed:
Mar. 11, 2008
Fumihiro Koshigoe, Moka, JP;
Toshiki Ueda, Moka, JP;
Shimpei Kimura, Moka, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
Disclosed is an aluminum alloy brazing sheet for heat exchanger which excels in resistance to corrosion from its inside and simultaneously attains satisfactory erosion resistance and high strength. This includes a core material of an Al alloy containing predetermined amounts of Si, Mn, Cu, Mg, and Ti; a clad material of an Al alloy containing predetermined amounts of Si, Mn, and Zn, having a predetermined thickness, and lying on one side of the core material so as to constitute an inner side of a tube member of the heat exchanger; and a filler material of an Al alloy containing a predetermined amount of Si, having a predetermined thickness, and lying on the other side of the core material so as to constitute an outer side of the tube member. The crystal grain size of the core material after brazing under specific conditions is 50 μm or more but less than 300 μm in a rolling direction.