Invention Grant
- Patent Title: Grain-oriented electrical steel sheet and method for manufacturing the same
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Application No.: US16068121Application Date: 2017-01-24
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Publication No.: US11031163B2Publication Date: 2021-06-08
- Inventor: Takeshi Omura , Shigehiro Takajo , Hirotaka Inoue
- Applicant: JFE STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: JFE STEEL CORPORATION
- Current Assignee: JFE STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Kenja IP Law PC
- Priority: JPJP2016-011706 20160125
- International Application: PCT/JP2017/002381 WO 20170124
- International Announcement: WO2017/130980 WO 20170803
- Main IPC: H01F1/18
- IPC: H01F1/18 ; C21D8/12 ; H01F1/147 ; C22C38/00 ; C21D9/46 ; H01F41/22

Abstract:
An excellent low noise property and excellent low iron loss property are obtained. A grain-oriented electrical steel sheet includes refined magnetic domains formed by electron beam irradiation. When the maximum magnetic flux density is 1.7 T, the grain-oriented electrical steel sheet has a residual magnetic flux density of 0.1 to 0.7 times the residual magnetic flux density before the electron beam irradiation and a maximum magnetizing force of 1.1 to 2.0 times the maximum magnetizing force before the electron beam irradiation.
Public/Granted literature
- US20190013126A1 GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME Public/Granted day:2019-01-10
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