Title:
GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET PRODUCTION METHOD AND ANNEALING SEPARATOR USED FOR SAME
Document Type and Number:
WIPO Patent Application WO/2022/168887
Kind Code:
A1
Abstract:
The present invention provides a grain-oriented electromagnetic steel sheet production method whereby greater purity of an inhibitor-enhancing element can be promoted by improvement of an annealing separator and, as a result, iron loss can be effectively improved. This annealing separator contains 1–10 parts by mass of a composite oxide, relative to 100 parts by mass of MgO, said composite oxide including at least one type selected from both a first group comprising Fe, Mn, Al, and Ca and a second group comprising Zr, Ta, Mo, and Nb.
Inventors:
WATANABE MAKOTO (JP)
YAMADA TAKUYA (JP)
TERASHIMA TAKASHI (JP)
YAMADA TAKUYA (JP)
TERASHIMA TAKASHI (JP)
Application Number:
PCT/JP2022/004122
Publication Date:
August 11, 2022
Filing Date:
February 02, 2022
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/12; C21D9/46; H01F1/147; C22C38/00; C22C38/14; C22C38/60
Domestic Patent References:
| WO2008047999A1 | 2008-04-24 |
Foreign References:
| JP2007177298A | 2007-07-12 | |||
| JP2005256158A | 2005-09-22 | |||
| JP2019085632A | 2019-06-06 | |||
| JPH1053818A | 1998-02-24 | |||
| JP2008115421A | 2008-05-22 | |||
| JPH11158557A | 1999-06-15 | |||
| JP2006193798A | 2006-07-27 | |||
| JPH09184017A | 1997-07-15 |
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
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