| 发明名称 |
METHOD FOR REFINING MAGNETIC DOMAINS IN GRAIN-ORIENTED ELECTRICAL STEEL SHEET |
| 摘要 |
<p>The present invention relates to a magnetic domain refinement method of a grain-oriented electrical steel sheet and, specifically, to a magnetic domain refinement method to irradiate a laser beam to a surface of an electrical steel sheet. Moreover, the angle (β) between an irradiation ray by the laser beam and a rolling direction is 84-88°or 92-96°.</p> |
| 申请公布号 |
KR20140133974(A) |
申请公布日期 |
2014.11.21 |
| 申请号 |
KR20130052710 |
申请日期 |
2013.05.09 |
| 申请人 |
POSCO |
发明人 |
SHIM, HO KYUNG;CHOI, BYOUNG SUB;KWON, OH YEOUL |
| 分类号 |
C21D8/12;B23K26/40 |
主分类号 |
C21D8/12 |
| 代理机构 |
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| 主权项 |
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