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:
Nov. 18, 2008
Filed:
Oct. 02, 2003
Applicants:
Yasuo Manabe, Takasago, JP;
Makoto Yoneda, Takasago, JP;
Shigeo Kofune, Takasago, JP;
Inventors:
Assignee:
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), Kobe-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 1/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
In reforming mechanical characteristics of a precipitation hardening type Al alloy casting, the Al alloy casting is subjected to a high temperature/high pressure treatment, then the pressure is reduced while maintaining the temperature of the Al alloy casting, and subsequently the Al alloy casting is subjected to solution treatment, quenching, and aging in this order. According to this method, mechanical characteristics of the casting can be reformed efficiently and economically and there can be obtained a reformed product of good quality.