Invention Grant
- Patent Title: Treatment solution for insulation coating for grain oriented electrical steel sheet and method for producing grain oriented electrical steel sheet having insulation coating
- Patent Title (中): 晶粒取向电工钢板绝缘涂层处理液及具有绝缘涂层的晶粒取向电工钢板生产方法
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Application No.: US12675158Application Date: 2008-08-28
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Publication No.: US08409370B2Publication Date: 2013-04-02
- Inventor: Minoru Takashima , Mineo Muraki , Makoto Watanabe , Tomofumi Shigekuni
- Applicant: Minoru Takashima , Mineo Muraki , Makoto Watanabe , Tomofumi Shigekuni
- Applicant Address: JP
- Assignee: JFE Steel Corporation
- Current Assignee: JFE Steel Corporation
- Current Assignee Address: JP
- Agency: DLA Piper LLP (US)
- Priority: JP2007-224742 20070830
- International Application: PCT/JP2008/065925 WO 20080828
- International Announcement: WO2009/028726 WO 20090305
- Main IPC: C23C22/07
- IPC: C23C22/07 ; C23C22/00
Abstract:
A treatment solution for insulation coating for grain oriented electrical steel sheet includes at least one member selected from phosphates of Mg, Ca, Ba, Sr, Zn, Al, and Mn, and colloidal silica in a proportion of 0.2 to 10 mol in terms of SiO2 and a titanium chelate compound in a proportion of 0.01 to 4.0 mol in terms of Ti, relative to PO4: 1 mol in the phosphates.
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