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Patent Searching and Data


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 (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
KOKUFU Karin (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
TAKAMIYA Toshito (JFE STEEL CORPORATION 2-3, Uchisaiwai-cho 2-chome, Chiyoda-k, Tokyo 11, 〒1000011, JP)
Application Number:
JP2018/038133
Publication Date:
June 06, 2019
Filing Date:
October 12, 2018
Export Citation:
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Assignee:
JFE STEEL CORPORATION (2-3 Uchisaiwai-cho 2-chome, Chiyoda-ku Tokyo, 11, 〒1000011, 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:
JP2017122247A2017-07-13
JP2015147988A2015-08-20
JPH08325745A1996-12-10
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (XYMAX Iwamoto-cho Building 6F, 3-3 Iwamoto-cho 2-chome, Chiyoda-k, Tokyo 32, 〒1010032, JP)
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