发明名称 |
GRAIN-ORIENTED ELECTRICAL STEEL SHEET |
摘要 |
The present invention proposes a method that can reduce the noise generated by a transformer core and the like when formed by laminations of a grain-oriented electrical steel sheet in which core loss has been reduced by a magnetic domain refinement process. In this steel sheet, linear distortion extending with an orientation in which an angle formed with a direction perpendicular to the rolling direction of the steel sheet is an angle of 30° or less is periodic in the direction of rolling of the steel sheet, core loss (W17/50) is 0.720 W/kg or less, and magnetic flux density (B8) is 1.930 T. The volume of the closure domain arising in the distortion part is 1.00 - 3.00% of the total magnetic domain volume within the steel sheet. |
申请公布号 |
WO2013099258(A1) |
申请公布日期 |
2013.07.04 |
申请号 |
WO2012JP08366 |
申请日期 |
2012.12.27 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
SUEHIRO, RYUICHI;YAMAGUCHI, HIROI;OKABE, SEIJI;INOUE, HIROTAKA;TAKAJO, SHIGEHIRO |
分类号 |
C22C38/00;C21D8/12;C22C38/02;H01F1/16 |
主分类号 |
C22C38/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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