Annealing separator composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for manufacturing grain-oriented electrical steel sheet
US11685962B2 · kind B2 · utility
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2References
6Claims
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Key dates
| Filing date | Sep 25, 2019 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Sep 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F1/147
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An annealing separator composition for a grain-oriented electrical steel sheet according to an embodiment of the present invention includes: 100 parts by weight of at least one of a magnesium oxide and a magnesium hydroxide; and 30 to 250 parts by weight of a metal hydroxide including at least one of a nickel hydroxide and a cobalt hydroxide, wherein an average particle diameter of the metal hydroxide is 0.01 to 80 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.