Manufacturing method of grain-oriented electrical steel sheet

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United States of America Patent

PATENT NO 8366836
APP PUB NO 20120103474A1
SERIAL NO

13381294

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Abstract

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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.

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Patent Owner(s)

  • NIPPON STEEL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Norikazu Tokyo, JP 24 332
Ushigami, Yoshiyuki Tokyo, JP 81 522

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