Treatment solution for insulation coating for grain-oriented electrical steel sheets
US9011585B2 · kind B2 · utility
1Cited by
6References
6Claims
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Key dates
| Filing date | May 15, 2014 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | May 15, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D9/46
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A treatment solution for an insulation coating of grain-oriented electrical steel sheets includes 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.