Invention Application
- Patent Title: GRAIN ORIENTED ELECTRICAL STEEL SHEET, FORMING METHOD FOR INSULATION COATING OF GRAIN ORIENTED ELECTRICAL STEEL SHEET, AND PRODUCING METHOD FOR GRAIN ORIENTED ELECTRICAL STEEL SHEET
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Application No.: US17428234Application Date: 2020-02-07
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Publication No.: US20220243315A1Publication Date: 2022-08-04
- Inventor: Ichiro TANAKA , Takashi KATAOKA , Kazutoshi TAKEDA , Masamitsu KUBOTA , Hirotoshi TADA
- Applicant: NIPPON STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION
- Current Assignee: NIPPON STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Priority: JP2019-021285 20190208
- International Application: PCT/JP2020/004890 WO 20200207
- Main IPC: C23C14/16
- IPC: C23C14/16 ; C22C38/06 ; C22C38/04 ; C22C38/02 ; C22C38/00 ; C21D9/46 ; C21D8/02 ; C21D3/04
Abstract:
A grain oriented electrical steel sheet includes a base steel sheet, an oxide layer, and a tension-insulation coating. When a glow discharge spectroscopy is conducted in a region from a surface of the tension-insulation coating to an inside of the base steel sheet, a sputtering time Fe0.5 at which a Fe emission intensity becomes 0.5 times as compared with a saturation value thereof and a sputtering time Fe0.05 at which a Fe emission intensity becomes 0.05 times as compared with the saturation value satisfy 0.01
Information query
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