Title:
GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2022/191327
Kind Code:
A1
Abstract:
This grain-oriented electrical steel sheet has on the surface a finish-annealed coating predominantly composed of forsterite and an insulation coating containing pseudo-tetragonal crystalline aluminum borate and silica, and one or both surfaces of the steel sheet has linear grooves or rows of dot-shaped recesses having a depth of 5-40 μm.
Inventors:
TAKAHASHI MASARU (JP)
YAMAZAKI SHUICHI (JP)
YAMAZAKI SHUICHI (JP)
Application Number:
PCT/JP2022/011050
Publication Date:
September 15, 2022
Filing Date:
March 11, 2022
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C21D8/12; C22C38/00; C22C38/02; C23C22/00; C25F3/06; H01F1/147
Domestic Patent References:
| WO2020085024A1 | 2020-04-30 | |||
| WO2020085024A1 | 2020-04-30 |
Foreign References:
| JP2003301271A | 2003-10-24 | |||
| JPS563414B2 | 1981-01-24 | |||
| JP2021038990A | 2021-03-11 | |||
| JP2001316896A | 2001-11-16 | |||
| JP2003301272A | 2003-10-24 | |||
| JP2004269925A | 2004-09-30 | |||
| JP2004099929A | 2004-04-02 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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