发明名称 |
FORSTERITE CONFIRMATION METHOD, FORSTERITE EVALUATION DEVICE, AND STEEL SHEET PRODUCTION LINE |
摘要 |
Provided is a technique for easily checking the presence of forsterite without destroying a measurement object. The location where forsterite is present is checked in a region from which light excited by an electron beam is emitted when a material containing forsterite is irradiated with an electron beam. The present invention is preferably applied to the case where the material is a grain oriented electrical steel sheet having a forsterite layer. In addition, it is preferable that the accelerating voltage be 30 kV or more when an electron beam is radiated in the case where the material is a grain oriented electrical steel sheet having a tension coating layer on the forsterite layer. |
申请公布号 |
EP2980566(A4) |
申请公布日期 |
2016.08.17 |
申请号 |
EP20140773833 |
申请日期 |
2014.03.24 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
NAGOSHI, MASAYASU;YAMASHITA, TAKAKO;USUI, YUKIO;TAKAJO, SHIGEHIRO;HANAZAWA, KAZUHIRO |
分类号 |
G01N23/225;C21D8/12;H01F1/16;H01F1/18 |
主分类号 |
G01N23/225 |
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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