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.

Date of Patent:
Mar. 13, 2007

Filed:

Mar. 03, 2003
Applicants:

Kazuo Kimura, Sakai, JP;

Nobuhiko Akagi, Sakai, JP;

Inventors:

Kazuo Kimura, Sakai, JP;

Nobuhiko Akagi, Sakai, JP;

Assignee:

Showa Denko K.K., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22F 1/05 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for manufacturing an Al—Mg—Si series alloy plate includes the steps of hot-rolling and subsequently cold-rolling an Al—Mg—Si series alloy ingot. The Al—Mg—Si series alloy ingot consists of Si: 0.2 to 0.8 mass %, Mg: 0.3 to 1 mass %, Fe: 0.5 mass % or less, Cu: 0.5 mass % or less, at least one of elements selected from the group consisting of Ti: 0.1 mass % or less and B: 0.1 mass % or less and the balance being Al and inevitable impurities. Heat-treating for holding a rolled ingot at 200 to 400° C. for 1 hour or more is performed after a completion of the hot-rolling but before a completion of the cold-rolling.


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