Annealing separator composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet
US11773462B2 · kind B2 · utility
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3References
1Claims
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Key dates
| Filing date | Dec 21, 2017 |
| Grant date | Oct 3, 2023 |
| Priority date | — |
| Expiry date | May 18, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C2202/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides an annealing separator composition, a grain-oriented electrical steel sheet and a method for manufacturing a grain-oriented electrical steel sheet.An annealing separator composition for a grain-oriented electrical steel sheet according to an embodiment of present invention comprising: on the basis of total solid 100 wt %, 5 to 70 wt % of mullite; and the remainder being magnesium oxide or magnesium hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.