Invention Grant
- Patent Title: Electrical steel sheet with insulating coating
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Application No.: US15562994Application Date: 2016-04-05
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Publication No.: US10526672B2Publication Date: 2020-01-07
- Inventor: Naoki Muramatsu , Nobuko Nakagawa , Kazumichi Sashi , Chiyoko Tada
- Applicant: JFE STEEL CORPORATION
- Applicant Address: JP Chiyoda-ku, Tokyo
- Assignee: JFE STEEL CORPORATION
- Current Assignee: JFE STEEL CORPORATION
- Current Assignee Address: JP Chiyoda-ku, Tokyo
- Agency: Kenja IP Law PC
- Priority: JP2015-078592 20150407
- International Application: PCT/JP2016/001916 WO 20160405
- International Announcement: WO2016/163116 WO 20161013
- Main IPC: C21D8/12
- IPC: C21D8/12 ; C23C22/68 ; C09D5/08 ; H01F1/18 ; B05D3/02 ; C09D7/63 ; C09D7/40 ; C09D5/00 ; C08K3/22 ; C08K3/36 ; B05D5/12 ; B05D7/14

Abstract:
The disclosure provides an electrical steel sheet with an insulating coating excellent in both punchability and powdering resistance, without any chromium compound being contained in the insulating coating. The electrical steel sheet with an insulating coating includes an electrical steel sheet and an insulating coating formed on the electrical steel sheet. The insulating coating contains Si and particulate organic resin. The organic resin contains primary particles having an average primary particle size of 1.0 μm or less, and 5% or more and 50% or less of the primary particles of the organic resin are agglomerated particles.
Public/Granted literature
- US20180251869A1 ELECTRICAL STEEL SHEET WITH INSULATING COATING Public/Granted day:2018-09-06
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