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:
Apr. 08, 2014
Filed:
Jun. 06, 2012
Pizhi Zhao, Shizuoka, JP;
Toshiya Anami, Shizuoka, JP;
Ichiro Okamoto, Shizuoka, JP;
Hitoshi Kazama, Saitama, JP;
Kunihiro Yasunaga, Saitama, JP;
Noboru Hayashi, Saitama, JP;
Kevin Gatenby, Kingston, CA;
Simon Barker, Kingston, CA;
Edward Luce, Kingston, CA;
Pizhi Zhao, Shizuoka, JP;
Toshiya Anami, Shizuoka, JP;
Ichiro Okamoto, Shizuoka, JP;
Hitoshi Kazama, Saitama, JP;
Kunihiro Yasunaga, Saitama, JP;
Noboru Hayashi, Saitama, JP;
Kevin Gatenby, Kingston, CA;
Simon Barker, Kingston, CA;
Edward Luce, Kingston, CA;
Nippon Light Metal Co., Ltd., Tokyo, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Novelis Inc., Toronto, CA;
Abstract
An aluminum alloy sheet is manufactured by preparing a slab having a thickness of 5 to 15 mm with a continuous casting machine by a continuous casting process using molten alloy containing 0.40% to 0.65% of Mg, 0.50% to 0.75% of Si, 0.05% to 0.20% of Cr, and 0.10% to 0.40% of Fe, a remainder being Al; winding the slab into a coil; cold-rolling the slab into a sheet; subjecting the sheet to solution heat treatment in such a manner that the sheet is heated to a temperature of 530° C. to 560° C. at a heating rate of 10° C./sec or more and then maintained at the temperature for five seconds or more; quenching the sheet with water; coiling up the sheet; maintaining the sheet at a temperature of 60° C. to 110° C. for 3 to 12 hours; and then cooling the sheet to room temperature.