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:
May. 07, 2019
Filed:
Jun. 04, 2013
Denso Corporation, Aichi, JP;
Nippon Light Metal Company, Ltd., Tokyo, JP;
Novelis Inc., Atlanta, GA (US);
Takanori Kokubo, Shizuoka, JP;
Toshiya Anami, Shizuoka, JP;
Hayaki Teramoto, Aichi, JP;
Hideyuki Ota, Aichi, JP;
Toshihide Ninagawa, Aichi, JP;
DENSO CORPORATION, Aichi, JP;
NOVELIS INC., Atlanta, GA (US);
NIPPON LIGHT METAL COMPANY, LTD., Tokyo, JP;
Abstract
An aluminum alloy fin material for heat exchanger use having a 35 to 50 μm thickness, a small springback at the time of corrugation, a suitable strength before brazing enabling easy fin formation, a high strength after brazing, and excellent erosion resistance, self corrosion resistance, and sacrificial anodic effect and a method of production of the same are provided. A fin material containing, by mass %, Si: 0.9 to 1.2%, Fe: 0.8 to 1.1%, Mn: 1.1 to 1.4%, and Zn: 0.9 to 1.1%, further limiting the impurity Mg to 0.05% or less, Cu to 0.03% or less, and ([Si]+[Fe]+2[Mn])/3 to 1.4% to 1.6%, and having a balance of unavoidable impurities and Al. A method of production prescribing hot rolling, cold rolling, intermediate annealing, and final cold rolling.