| 发明名称 |
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND TRANSFORMER IRON CORE USING SAME |
| 摘要 |
A grain-oriented electrical steel sheet subjected to magnetic domain refining by linearly introducing strains in a direction intersecting a rolling direction of the steel sheet repeatedly with intervals in the rolling direction, wherein if a repeating interval of the strains in the rolling direction is d (mm) and, when the steel sheet is placed on a flat surface, a mean value of difference between a height from the flat surface in linear strain-introduced areas of a steel sheet surface and a height from the flat surface in intermediate points between adjacent linear strain-introduced areas is h (mm), then the ratio h/d of the h to the d is 0.0025 or more and 0.015 or less. |
| 申请公布号 |
US2016133368(A1) |
申请公布日期 |
2016.05.12 |
| 申请号 |
US201414894697 |
申请日期 |
2014.05.27 |
| 申请人 |
JFE STEEL CORPORATION |
发明人 |
OKABE Seiji;INOUE Hirotaka;TAKAJO Shigehiro |
| 分类号 |
H01F3/02;C22C38/08;C21D8/12;C22C38/04;C22C38/02;C22C38/00;C22C38/60;C22C38/06 |
主分类号 |
H01F3/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A grain-oriented electrical steel sheet subjected to magnetic domain refining by linearly introducing strains in a direction intersecting a rolling direction of the steel sheet repeatedly with intervals in the rolling direction,
wherein if a repeating interval of the strains in the rolling direction is d (mm) and, when the steel sheet is placed on a flat surface, a mean value of difference between a height from the flat surface in linear strain-introduced areas of a steel sheet surface and a height from the flat surface in intermediate points between adjacent linear strain-introduced areas is h (mm), then the ratio h/d of the h to the d is 0.0025 or more and 0.015 or less. |
| 地址 |
Tokyo JP |
