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Title:
ORIENTED ELECTROMAGNETIC STEEL PLATE
Document Type and Number:
WIPO Patent Application WO/2019/013350
Kind Code:
A1
Abstract:
This oriented electromagnetic steel plate is provided with a base material steel sheet, an intermediate layer arranged in contact with the base material steel sheet, and an insulating film arranged in contact with the intermediate layer so as to become the topmost surface. Viewed on a cut surface in which the cutting direction is parallel to the plate thickness direction, the intermediate layer has selective oxidation regions, and the thickness of the intermediate layer in the regions where selective oxidation regions are present is greater than or equal to 50 nm, and the thickness of the intermediate layer in regions where selective oxidation regions are not present is less than 50 nm.

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Inventors:
TAKEBAYASHI SEIKI (JP)
NAKAMURA SHUICHI (JP)
FUJII HIROYASU (JP)
USHIGAMI YOSHIYUKI (JP)
TAKATANI SHINSUKE (JP)
Application Number:
PCT/JP2018/026617
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; C23C8/14; C23C22/00; H01F1/147; C22C38/00; C22C38/60
Foreign References:
JPS6236803A1987-02-17
JPS6286123A1987-04-20
JPS62133021A1987-06-16
JPH05148532A1993-06-15
JP2009235568A2009-10-15
JP2015168839A2015-09-28
JP2017137443A2017-08-10
JPS4996920A1974-09-13
JPH06184762A1994-07-05
JPH0978252A1997-03-25
JPH07278833A1995-10-24
JPH08191010A1996-07-23
JPH03130376A1991-06-04
JPH01209891A1989-08-23
JP2004315880A2004-11-11
JP2002322566A2002-11-08
JP2002363763A2002-12-18
JP2003313644A2003-11-06
JP2003171773A2003-06-20
JP2002348643A2002-12-04
JP2004342679A2004-12-02
Other References:
See also references of EP 3653757A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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