Title:
GRAIN-ORIENTED ELECTRICAL STEEL SHEET, METHOD FOR MANUFACTURING GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR EVALUATING GRAIN-ORIENTED ELECTRICAL STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2022/085263
Kind Code:
A1
Abstract:
An objective of the present invention is to provide a grain-oriented electrical steel sheet having excellent insulating properties. The grain-oriented electrical steel sheet includes a steel sheet and coating films respectively provided on both sides of the steel sheet, wherein an interlayer current value after a friction test is 0.10 A or less. However, the friction test is performed by overlapping two grain-oriented electrical steel sheets and causing the two grain-oriented electrical steel sheets to reciprocate 90 times under the conditions of a surface pressure of 200 Pa, a friction speed of 0.10 m/sec, and a reciprocating stroke of 50 mm.
Inventors:
WATANABE MAKOTO (JP)
TERASHIMA TAKASHI (JP)
KOKUFU KARIN (JP)
TERASHIMA TAKASHI (JP)
KOKUFU KARIN (JP)
Application Number:
PCT/JP2021/027500
Publication Date:
April 28, 2022
Filing Date:
July 26, 2021
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C21D8/12; C22C38/00; C22C38/04; C22C38/60; C23C22/00; G01N33/20; H01F1/147
Domestic Patent References:
| WO2018181831A1 | 2018-10-04 |
Foreign References:
| JPH11222654A | 1999-08-17 | |||
| JPH09192602A | 1997-07-29 | |||
| JP2005240157A | 2005-09-08 | |||
| JP2018028140A | 2018-02-22 | |||
| JP2017137540A | 2017-08-10 | |||
| US20030136470A1 | 2003-07-24 | |||
| JPS5652117B2 | 1981-12-10 | |||
| JPS5328375B2 | 1978-08-14 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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