Title:
GRAIN-ORIENTED ELECTRICAL STEEL PLATE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2020/149328
Kind Code:
A1
Abstract:
The grain-oriented electrical steel plate is characterized by having a steel plate, an insulating film arranged on the steel plate, and spinel present fitted into the insulating film in a part on the steel plate that is at the interface of the steel plate and the insulating film, and by the amount of spinel being 5-50 mg/m2 per unit area of the surface of the steel plate.
Inventors:
FUJII HIROYASU (JP)
TAKEBAYASHI SEIKI (JP)
USHIGAMI YOSHIYUKI (JP)
KATAOKA TAKASHI (JP)
OKUMURA SHUNSUKE (JP)
TAKEBAYASHI SEIKI (JP)
USHIGAMI YOSHIYUKI (JP)
KATAOKA TAKASHI (JP)
OKUMURA SHUNSUKE (JP)
Application Number:
PCT/JP2020/001156
Publication Date:
July 23, 2020
Filing Date:
January 16, 2020
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D9/46; C22C38/00; C22C38/60; C23C22/00; H01F1/147
Domestic Patent References:
| WO2015064472A1 | 2015-05-07 | |||
| WO2002088403A1 | 2002-11-07 |
Foreign References:
| JPH08134660A | 1996-05-28 | |||
| JPS5996278A | 1984-06-02 | |||
| JP2019005131A | 2019-01-17 | |||
| JPS4839338A | 1973-06-09 | |||
| JPS4996920A | 1974-09-13 | |||
| US3785882A | 1974-01-15 | |||
| JPS5665983A | 1981-06-04 | |||
| JPS4819050B1 | 1973-06-11 | |||
| JPS563414B2 | 1981-01-24 | |||
| JPS5844152B2 | 1983-10-01 | |||
| JPH0718457A | 1995-01-20 | |||
| JPS5996278A | 1984-06-02 | |||
| JP4184809B2 | 2008-11-19 | |||
| JP4473489B2 | 2010-06-02 |
Other References:
FUJII, H ET AL.: "Glass Film Structure of Grain- Oriented Silicon Steel Using Aluminum Nitride as an Inhibitor", JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, vol. 3, no. 2, 30 April 1994 (1994-04-30), pages 214 - 217, XP000470001
See also references of EP 3913098A4
See also references of EP 3913098A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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