Invention Grant
- Patent Title: Non-oriented electrical steel sheet
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Application No.: US16970573Application Date: 2019-03-25
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Publication No.: US11111567B2Publication Date: 2021-09-07
- Inventor: Tesshu Murakawa , Hiroshi Fujimura , Satoshi Kano
- Applicant: NIPPON STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION
- Current Assignee: NIPPON STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JPJP2018-058264 20180326
- International Application: PCT/JP2019/012417 WO 20190325
- International Announcement: WO2019/188940 WO 20191003
- Main IPC: C22C38/42
- IPC: C22C38/42 ; C22C38/34 ; C22C38/06 ; C22C38/04 ; C22C38/00 ; C21D9/46 ; C21D8/12 ; C21D8/00 ; C21D6/00 ; H01F1/147 ; B32B15/01 ; C23C30/00 ; C22C38/40 ; C22C38/02 ; C22C38/08 ; C22C38/16 ; C22C38/18 ; C22C38/20 ; C22C38/38 ; C22C38/58

Abstract:
A non-oriented electrical steel sheet including, as a chemical composition, by mass %: C: 0.0030 % or less; Si: 2.00 % to 4.00 %; Al: 0.01 % to 3.00 %; Mn: 0.10 % to 2.00 %; P: 0.005 % to 0.200 %; S: 0.0030 % or less; Cu: more than 1.0 % and 3.0 % or less; Ni: 0.10 % to 3.0 %; one or more coarse precipitate forming element: more than 0.0005 % and 0.0100 % or less in total; a parameter Q (Q=[Si] +2 [Al] [Mn]) is 2.00 or more; Sn: 0.00 % to 0.40 %; Cr: 0.0 % to 10.0 %, and a remainder: Fe and impurities, wherein a number of Cu particles having a diameter of less than 100 nm is 5 or more per 10 μm2, a {100} crystal orientation intensity is 2.4 or more, a thickness is 0.10 mm to 0.60 mm, and an average grain size is 70 μm to 200 μm.
Public/Granted literature
- US20210108296A1 NON-ORIENTED ELECTRICAL STEEL SHEET Public/Granted day:2021-04-15
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