Treatment solution for insulation coating for grain oriented electrical steel sheet and method for producing grain oriented electrical steel sheet having insulation coating
US8535455B2 · kind B2 · utility
5Cited by
6References
4Claims
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Key dates
| Filing date | Aug 20, 2008 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Sep 8, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/14791
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A treatment solution for an insulation coating for a 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 0.5 to 10 mol in terms of SiO2 and at least one member selected from permanganates of Mg, Sr, Zn, Ba, and Ca in a proportion of 0.02 to 2.5 mol in terms of metal elements in the permanganates, relative to PO4:1 mol in the phosphates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.