Title:
ELECTROMAGNETIC STEEL SHEET HAVING INSULATION COATING FILM ATTACHED THERETO
Document Type and Number:
WIPO Patent Application WO/2020/166121
Kind Code:
A1
Abstract:
The purpose is to provide an electromagnetic steel sheet having an insulation coating film attached thereto, which exhibits excellent coating film detachment resistance during a press processing and is prevented from the aggregation of a coating film onto a mold. An electromagnetic steel sheet having an insulation coating film attached thereto, which comprises an electromagnetic steel sheet and an insulation coating film arranged on at least one surface of the electromagnetic steel sheet, wherein the insulation coating film contains P and Al and contains a complex having an aspect ratio of 1 to 10, wherein the particle diameter of the complex is 10 to 1000 nm and the film thickness of the insulation coating film is 500 to 2000 nm.
Inventors:
MURAMATSU NAOKI (JP)
NAKAGAWA NOBUKO (JP)
TADA CHIYOKO (JP)
NAKAGAWA NOBUKO (JP)
TADA CHIYOKO (JP)
Application Number:
PCT/JP2019/038026
Publication Date:
August 20, 2020
Filing Date:
September 26, 2019
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C23C22/00
Domestic Patent References:
| WO2012057168A1 | 2012-05-03 | |||
| WO2016104407A1 | 2016-06-30 | |||
| WO2016104512A1 | 2016-06-30 | |||
| WO2016104404A1 | 2016-06-30 |
Foreign References:
| JP2013249486A | 2013-12-12 | |||
| JP2010261063A | 2010-11-18 | |||
| JP4725094B2 | 2011-07-13 | |||
| JP5877252B2 | 2016-03-02 |
Other References:
See also references of EP 3926072A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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