Title:
The directivity electromagnetic plate and sheet which is excellent in magnetic property and tunic adhesion nature
Document Type and Number:
Japanese Patent JP6156646
Kind Code:
B2
Abstract:
There is provided a grain-oriented electrical steel sheet stably having excellent magnetic characteristics and coating adhesion even when a rapid heating is conducted in a primary recrystallization annealing (decarburization annealing). Concretely, it is a grain-oriented electrical steel sheet provided on its sheet surface with a tension-applying type insulation coating constituted with a coating layer A formed on a steel sheet side and mainly composed of an oxide and a coating layer B formed on a surface side and mainly composed of glass, characterized in that a ratio R (à B /à A ) of a tension à B of the coating layer B on the surface side applied to the steel sheet to a tension à A of the coating layer on the steel sheet side A applied to the steel sheet is within a range of 1.20-4.0.
Inventors:
Kei Terashima
Makoto Watanabe
Masanori Uesaka
Ryuichi Suehiro
Toshiaki Takamiya
Makoto Watanabe
Masanori Uesaka
Ryuichi Suehiro
Toshiaki Takamiya
Application Number:
JP2013225122A
Publication Date:
July 05, 2017
Filing Date:
October 30, 2013
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
C22C38/00; C21D8/12; C21D9/46; C22C38/60; H01F1/147
Domestic Patent References:
| JP2006137972A | ||||
| JP2003293103A | ||||
| JP7062436A | ||||
| JP2010249616A |
Attorney, Agent or Firm:
Ginza Marronnier Patent Office