Grain-oriented electrical steel sheet and method for manufacturing same
US10147527B2 · kind B2 · utility
3Cited by
5References
4Claims
0Family size
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Key dates
| Filing date | Dec 28, 2012 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Feb 15, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2201/05
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A grain-oriented electrical steel sheet exhibits reduced iron loss and reduced noise. The electrical steel sheet has magnetic domains refined by regions with a high lattice defect density being locally formed on the surface of or within the steel sheet, in which the regions with a high lattice defect density has a hardness, as measured by a micro Vickers hardness meter, equal to or lower than that of other regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.