Invention Grant
- Patent Title: Manufacturing method of grain-oriented electrical steel sheet
- Patent Title (中): 晶粒取向电工钢板的制造方法
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Application No.: US13381294Application Date: 2010-07-13
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Publication No.: US08366836B2Publication Date: 2013-02-05
- Inventor: Yoshiyuki Ushigami , Norikazu Fujii
- Applicant: Yoshiyuki Ushigami , Norikazu Fujii
- Applicant Address: JP Tokyo
- Assignee: Nippon Steel Corporation
- Current Assignee: Nippon Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2009-165011 20090713; JP2009-165058 20090713; JP2010-013247 20100125
- International Application: PCT/JP2010/061818 WO 20100713
- International Announcement: WO2011/007771 WO 20110120
- Main IPC: H01F1/147
- IPC: H01F1/147
Abstract:
A silicon steel material is heated in a predetermined temperature range according to contents of B, N, Mn, S, and Se (step S1), and is subjected to hot rolling (step S2). Further, a finish temperature Tf of finish rolling in the hot rolling is performed in a predetermined temperature range according to the content of B. Through these treatments, a certain amount of BN is made to precipitate compositely on MnS and/or MnSe.
Public/Granted literature
- US20120103474A1 MANUFACTURING METHOD OF GRAIN-ORIENTED ELECTRICAL STEEL SHEET Public/Granted day:2012-05-03
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