Grain-oriented electrical steel plate and manufacturing method thereof
US10815545B2 · kind B2 · utility
1Cited by
2References
19Claims
0Family size
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Key dates
| Filing date | Dec 21, 2015 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Jul 17, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2201/05
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A grain-oriented electrical steel plate of an exemplary embodiment of the present invention has a groove formed on a surface, wherein a curvature radius RBb at a position where a depth of the groove is maximum is 0.2 μm to 100 μm, and a curvature radius RSb on the groove surface from the position where the depth of the groove is maximum to a quarter-way position of the depth D of the groove is 4 μm to 130 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.