- 专利标题： ELECTRICAL STEEL SHEET HAVING INSULATING COATING, METHOD FOR PRODUCING THE SAME, TRANSFORMER CORE AND TRANSFORMER USING THE ELECTRICAL STEEL SHEET, AND METHOD FOR REDUCING DIELECTRIC LOSS IN TRANSFORMER
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申请号： US17056847申请日： 2019-05-20
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公开(公告)号： US20210202145A1公开(公告)日： 2021-07-01
- 发明人: Takashi Terashima , Karin Kokufu , Makoto Watanabe , Toshito Takamiya
- 申请人： JFE Steel Corporation
- 申请人地址： JP Tokyo
- 专利权人： JFE Steel Corporation
- 当前专利权人： JFE Steel Corporation
- 当前专利权人地址： JP Tokyo
- 优先权： JP2018-103046 20180530
- 国际申请： PCT/JP2019/019839 WO 20190520
- 主分类号： H01F1/18
- IPC分类号： H01F1/18 ; C23C22/08 ; C23C22/74
摘要：
An electrical steel sheet having an insulating coating is provided. The electrical steel sheet is capable of reducing dielectric loss in a transformer in a case where the electrical steel sheet is used in a transformer core.
An electrical steel sheet having an insulating coating, the insulating coating being disposed on at least one of surfaces of the electrical steel sheet, the insulating coating having a relative dielectric constant at 1000 Hz of less than or equal to 15.0 and a dielectric loss tangent at 1000 Hz of less than or equal to 20.0.
An electrical steel sheet having an insulating coating, the insulating coating being disposed on at least one of surfaces of the electrical steel sheet, the insulating coating having a relative dielectric constant at 1000 Hz of less than or equal to 15.0 and a dielectric loss tangent at 1000 Hz of less than or equal to 20.0.
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