Invention Grant
- Patent Title: Electrical steel sheet provided with insulating coating
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Application No.: US15039161Application Date: 2014-11-11
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Publication No.: US10403417B2Publication Date: 2019-09-03
- Inventor: Kazumichi Sashi , Nobuko Nakagawa , Naoki Muramatsu , Chiyoko Tada , Nobue Fujibayashi
- Applicant: JFE Steel Corporation
- Applicant Address: JP Tokyo
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP Tokyo
- Agency: DLA Piper LLP (US)
- Priority: JP2013-246473 20131128; JP2014-133514 20140630
- International Application: PCT/JP2014/005661 WO 20141111
- International Announcement: WO2015/079633 WO 20150604
- Main IPC: H01B7/02
- IPC: H01B7/02 ; H01B13/02 ; C22C38/00 ; C22C38/06 ; H01F1/18 ; C21D8/12 ; H01B3/10

Abstract:
An electrical steel sheet is provided with insulating coating. The insulating coating contains Si and Fe. The coating weight of Si in the insulating coating in terms of SiO2 is 50% to 99% of the total coating weight. The ratio (Fe/Si) of the content of Fe to the content of Si in the insulating coating is 0.01 to 0.6 on a molar basis. The ratio (C (the organic resin+the lubricant)/(Fe2O3+SiO2)) of the coating weight of the organic resin and/or the lubricant in terms of C to the sum of the coating weight of Fe in terms of Fe2O3 and the coating weight of Si in terms of SiO2 preferably is 0.05 to 0.8.
Public/Granted literature
- US20170162295A1 ELECTRICAL STEEL SHEET PROVIDED WITH INSULATING COATING Public/Granted day:2017-06-08
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