Treatment solution for insulation coating for grain-oriented electrical steel sheets and method for producing grain-oriented electrical steel sheet having insulation coating
US8771795B2 · kind B2 · utility
3Cited by
4References
5Claims
0Family size
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Key dates
| Filing date | Jul 30, 2008 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Dec 11, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2201/05
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A treatment solution for insulation coating for grain-oriented electrical steel sheets contains at least one selected from phosphates of Mg, Ca, Ba, Sr, Zn, Al, and Mn; colloidal silica in a proportion of 0.5 to 10 mol in terms of SiO2 and a water-soluble vanadium compound in a proportion of 0.1 to 2.0 mol in terms of V, relative to PO4:1 mol in the phosphates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.