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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.:

US 9679687 B1

PDFFull Text
Date of Patent:
Jun. 13, 2017

Filed:

Oct. 27, 2014

Fe-based metal plate and method of manufacturing the same

Applicant:

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Inventors:

Tooru Inaguma, Tokyo, JP;

Miho Tomita, Tokyo, JP;

Youji Mizuhara, Tokyo, JP;

Hiroaki Sakamoto, Tokyo, JP;

Assignee:

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Deborah Yee

Int. Cl.
CPC ...
C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/24 (2006.01); C22C 38/18 (2006.01); H01F 1/16 (2006.01); H01F 1/053 (2006.01); H01F 1/147 (2006.01); B32B 15/01 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/04 (2006.01); C22C 38/08 (2006.01); C22C 38/16 (2006.01); C23C 10/28 (2006.01); C23C 14/58 (2006.01); C23C 2/12 (2006.01); C23C 2/26 (2006.01); C23C 2/28 (2006.01); C23C 14/16 (2006.01);
U.S. Cl.
CPC ...
H01F 1/14775 (2013.01); B32B 15/011 (2013.01); B32B 15/012 (2013.01); B32B 15/013 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/16 (2013.01); C22C 38/18 (2013.01); C23C 2/12 (2013.01); C23C 2/26 (2013.01); C23C 2/28 (2013.01); C23C 10/28 (2013.01); C23C 14/16 (2013.01); C23C 14/5893 (2013.01); H01F 1/16 (2013.01); C21D 2201/05 (2013.01); C21D 2211/004 (2013.01); C21D 2211/005 (2013.01); C21D 2221/00 (2013.01); C21D 2221/10 (2013.01); C22C 2202/02 (2013.01); Y10T 428/12951 (2015.01);
Abstract

On at least one surface of a base metal plate () of an α-γ transforming Fe or Fe alloy, a metal layer () containing ferrite former is formed. Next, the base metal plate () and the metal layer () are heated to an A3 point of the Fe or the Fe alloy, whereby the ferrite former are diffused into the base metal plate () to form an alloy region () in a ferrite phase in which an accumulation degree of {200} planes is 25% or more and an accumulation degree of {222} planes is 40% or less. Next, the base metal plate () is heated to a temperature higher than the A3 point of the Fe or the Fe alloy, whereby the accumulation degree of the {200} planes is increased and the accumulation degree of the {222} planes is decreased while the alloy region () is maintained in the ferrite phase.

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