US 12,442,053 B2
Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and method for evaluating grain-oriented electrical steel sheet
Makoto Watanabe, Tokyo (JP); Takashi Terashima, Tokyo (JP); and Karin Kokufu, Tokyo (JP)
Assigned to JFE STEEL CORPORATION, Tokyo (JP)
Appl. No. 18/031,246
Filed by JFE STEEL CORPORATION, Tokyo (JP)
PCT Filed Jul. 26, 2021, PCT No. PCT/JP2021/027500
§ 371(c)(1), (2) Date Apr. 11, 2023,
PCT Pub. No. WO2022/085263, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 2020-176601 (JP), filed on Oct. 21, 2020.
Prior Publication US 2023/0392223 A1, Dec. 7, 2023
Int. Cl. C21D 6/00 (2006.01); C21D 9/46 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01)
CPC C21D 6/008 (2013.01) [C21D 9/46 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C21D 2201/05 (2013.01)] 14 Claims
 
1. A grain oriented electrical steel sheet comprising: a steel sheet; and a coating disposed on each of both surfaces of the steel sheet,
wherein an interlaminar current value after a rubbing test is not more than 0.10 A,
the rubbing test being conducted by stacking two sheets of the grain oriented electrical steel sheet and rubbing the two sheets against each other to make 90 reciprocations under conditions of a surface pressure of 200 Pa, a rubbing speed of 0.10 m/s, and a reciprocating stroke of 50 mm.