| 发明名称 |
GRAIN-ORIENTED ELECTRICAL STEEL SHEET HAVING HIGH TENSILE STRENGTH INSULATING FILM AND METHOD OF TREATMENT OF INSULATING FILM |
| 摘要 |
<p>Grain-oriented electrical steel sheet having a chrome-free high tensile strength insulating film characterized by comprising steel sheet on the surface of which is formed an insulating film containing a phosphate and colloidal silica as main ingredients and containing crystalline magnesium phosphate uniformly dispersed over the entire surface.</p> |
| 申请公布号 |
EP2022874(A1) |
申请公布日期 |
2009.02.11 |
| 申请号 |
EP20070744083 |
申请日期 |
2007.05.18 |
| 申请人 |
NIPPON STEEL CORPORATION |
发明人 |
TAKEDA, KAZUTOSHI;TAKAHASHI, FUMIAKI;YAMAZAKI, SHUICHI;FUJII, HIROYASU;ANDOU, FUMIKAZU |
| 分类号 |
C23C22/74;C21D8/12;C23C22/18;C23C22/20;C23C22/22;H01F1/18 |
主分类号 |
C23C22/74 |
| 代理机构 |
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代理人 |
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