Title:
ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2019/106976
Kind Code:
A1
Abstract:
Provided are: an oriented electrical steel sheet having a high tension applied to a steel sheet and excellent adhesion to a film; and a method for producing the same. This oriented electrical steel sheet includes: a steel sheet; a film A containing a crystalline material disposed on the steel sheet; and a film B containing a vitreous material disposed on the film A, wherein an element profile, which is obtained by using a high-frequency glow discharge light-emission surface analysis method, in the direction from the film B to the steel sheet satisfies formulae (1) and (2). 0.35≤(tA/tFe/2)≤0.75 ··· (1), and 0.25≤(tA/2/tFe/2)≤1.00 ··· (2), where tA represents the peak time of an alkali metal element profile, tA/2 represents the half time of an alkali metal element profile, and tFe/2 represents the half time of a Fe profile.
Inventors:
TERASHIMA TAKASHI (JP)
KOKUFU KARIN (JP)
TAKAMIYA TOSHITO (JP)
KOKUFU KARIN (JP)
TAKAMIYA TOSHITO (JP)
Application Number:
PCT/JP2018/038133
Publication Date:
June 06, 2019
Filing Date:
October 12, 2018
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C23C22/00; B32B9/00; B32B15/04; C22C38/00; C23C14/06; C23C14/10; C23C26/00; C23C28/04; H01F1/147; C21D9/46; C22C38/60
Foreign References:
| JP2017122247A | 2017-07-13 | |||
| JP2015147988A | 2015-08-20 | |||
| JPH08325745A | 1996-12-10 | |||
| JPH0867913A | 1996-03-12 | |||
| JPS5079442A | 1975-06-27 | |||
| JPS4839338A | 1973-06-09 | |||
| JPH1171683A | 1999-03-16 |
Other References:
See also references of EP 3719169A4
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
Download PDF: