Invention Application
- Patent Title: NON-ORIENTED ELECTRICAL STEEL SHEET
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Application No.: US17761971Application Date: 2020-09-18
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Publication No.: US20220336129A1Publication Date: 2022-10-20
- Inventor: Kazutoshi TAKEDA , Shuichi YAMAZAKI , Takuya MATSUMOTO , Hiroyasu FUJII , Masaru TAKAHASHI
- Applicant: NIPPON STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION
- Current Assignee: NIPPON STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Priority: JP2019-171263 20190920
- International Application: PCT/JP2020/035520 WO 20200918
- Main IPC: H01F1/18
- IPC: H01F1/18 ; B05D1/02 ; B05D1/18 ; C09D7/61 ; C08K3/32 ; C09D133/08

Abstract:
There is provided a non-oriented electrical steel sheet that includes a base metal steel sheet and an insulating coating film that is formed on a surface of the base metal steel sheet, wherein the insulating coating film mainly contains metal phosphate, organic resin, and water-soluble organic compound, the metal phosphate contains at least aluminum as a metallic element, the organic resin has an SP value being within a range of 18.0 (MPa)0.5 or more to less than 24.0 (MPa)0.5, the water-soluble organic compound has an SP value being within a range of 19.0 (MPa)0.5 or more to less than 35.0 (MPa)0.5, and when measurement by X-ray diffractometry is performed on the insulating coating film, a degree of crystallinity of aluminum phosphate calculated from a peak from the metal phosphate is within a range of 0.5 to 5.0%.
Information query