Grain-oriented electrical steel sheet and method for manufacturing same
US12123065B2 · kind B2 · utility
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Key dates
| Filing date | Dec 23, 2016 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Dec 18, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/02
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A grain-oriented electrical steel sheet according to an embodiment of the present disclosure includes: a forsterite layer formed on the surface of an electrical steel sheet; a groove which is formed on the forsterite layer in a direction perpendicular to a rolling direction; and a forsterite calcination layer which is formed in the direction of both ends of the electrical steel sheet on the basis of an upper end of the groove and has a width of 1.1 to 1.3 times the width of the groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.