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Title:
ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/013351
Kind Code:
A1
Abstract:
This oriented electromagnetic steel sheet has: a base metal steel sheet; a middle layer disposed over and in contact with the base metal steel sheet; and an insulation film disposed over and in contact with the middle layer and serving as the top surface layer. The insulation film has an average Cr concentration of 0.1 at% or higher. In a cross section of the steel sheet, where the cutting direction is parallel to the direction of thickness, a compound layer having crystalline phosphide is observed in the region where the insulation film is in contact with the top of the middle layer.

Inventors:
YAMAMOTO SHINJI (JP)
USHIGAMI YOSHIYUKI (JP)
Application Number:
PCT/JP2018/026620
Publication Date:
January 17, 2019
Filing Date:
July 13, 2018
Export Citation:
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Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
C23C28/04; C21D8/12; C21D9/46; C23C8/18; C23C22/00; H01F1/147; C22C38/00; C22C38/60
Domestic Patent References:
WO2013099455A12013-07-04
Foreign References:
JPH08191010A1996-07-23
JP2001220683A2001-08-14
JPH07278833A1995-10-24
JPH05279864A1993-10-26
JP2007217758A2007-08-30
JP2017137411A2017-08-10
JPS4996920A1974-09-13
JP4184809B22008-11-19
JPH05279747A1993-10-26
JPH06184762A1994-07-05
JPH0978252A1997-03-25
JPH07278833A1995-10-24
JP2002322566A2002-11-08
JP2002363763A2002-12-18
JP2003313644A2003-11-06
JP2003171773A2003-06-20
JP2004342679A2004-12-02
Other References:
See also references of EP 3653759A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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