Grain-oriented electrical steel sheet, and method for manufacturing the same
US10023932B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Dec 26, 2013 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Jan 10, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D8/1255
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An oriented electrical steel sheet and a method of manufacturing the same are provided, and in a method of manufacturing an oriented electrical steel sheet including processes of producing a hot rolled plate by hot rolling a steel slab, performing or omitting hot rolled plate annealing, performing cold rolling, performing decarburization and nitride annealing, and performing final high temperature annealing, the decarburization and nitride annealing process is performed in a dew point range of 35-55° C., and in the final annealing process, a glassless additive including MgO is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.