Title:
GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR PRODUCING GRAIN-ORIENTED ELECTROMAGNETIC STEEL SHEET
Document Type and Number:
WIPO Patent Application WO/2018/097100
Kind Code:
A1
Abstract:
Provided are: a grain-oriented electromagnetic steel sheet which exhibits excellent magnetic characteristics and excellent coating film adhesion after strain relieving annealing; and a method for producing this grain-oriented electromagnetic steel sheet. This grain-oriented electromagnetic steel sheet comprises: a steel sheet; a coating film layer A that is a ceramic coating film which is formed on the steel sheet and has an oxide content of less than 30% by mass; and a coating film layer B that is an insulating tension coating film which is arranged on the coating film layer A and contains an oxide. The binding energy of the 1s orbital of oxygen in the coating film layer B is higher than 530 eV; and the tension applied to the steel sheet by the coating film layer B per a thickness of 1.0 μm of the coating film layer B is 4.0 MPa/μm or more.
More Like This:
Inventors:
UMADA TAKUMI (JP)
TAKAJO SHIGEHIRO (JP)
TERASHIMA TAKASHI (JP)
TAKAJO SHIGEHIRO (JP)
TERASHIMA TAKASHI (JP)
Application Number:
PCT/JP2017/041671
Publication Date:
May 31, 2018
Filing Date:
November 20, 2017
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C23C22/00; C21D8/12; C21D9/46; C22C38/00; C22C38/60; C23C14/08; C23C16/40; C23C28/04
Foreign References:
JP2005240157A | 2005-09-08 | |||
JPS6479381A | 1989-03-24 | |||
JPH07278830A | 1995-10-24 | |||
JPH01176034A | 1989-07-12 | |||
JPS6468425A | 1989-03-14 |
Other References:
P. PANJAN ET AL., THIN SOLID FILMS, vol. 281-282, 1996, pages 298
Attorney, Agent or Firm:
WATANABE Mochitoshi et al. (JP)
Download PDF:
Previous Patent: BASE MATERIAL EVALUATION METHOD AND CURVED GLASS EVALUATION DEVICE
Next Patent: LAMINATED GLASS
Next Patent: LAMINATED GLASS