Title:
A directivity electromagnetic plate and sheet and a manufacturing method for the same
Document Type and Number:
Japanese Patent JP6121086
Kind Code:
B2
Abstract:
The present invention provides a grain oriented electrical steel sheet that may reduce local exfoliation of insulating coating films and thus has excellent corrosion resistance and insulation properties. This grain oriented electrical steel sheet may be obtained by, assuming that a 1 (µm) is a film thickness of the insulating coating at the floors of linear grooves and a 2 (µm) is a film thickness of the insulating coating on a surface of the steel sheet at portions other than the linear grooves, controlling a 1 and a 2 to satisfy the following formulas (1) and (2): 0.3 ¼m ‰¤ a 2 ‰¤ 3.5 ¼m and a 1 / a 2 ‰¤ 2.5
Inventors:
Makoto Watanabe
Seiji Okabe
Toshiaki Takamiya
Seiji Okabe
Toshiaki Takamiya
Application Number:
JP2010222916A
Publication Date:
April 26, 2017
Filing Date:
September 30, 2010
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
C23C22/00; B32B15/04; C21D8/12; C22C38/00; C22C38/04; C22C38/60; C23C26/00; H01F1/18
Domestic Patent References:
| JP2001303215A | ||||
| JP11310882A | ||||
| JP11236682A | ||||
| JP1116085A |
Attorney, Agent or Firm:
Kenji Sugimura
Keisuke Kawahara
Keisuke Kawahara