Hot-rolled steel sheet for production of non-oriented electrical steel sheet and method of manufacturing same
US9947446B2 · kind B2 · utility
2Cited by
3References
4Claims
0Family size
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Key dates
| Filing date | Oct 11, 2013 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Aug 1, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The pickling loss when a hot-rolled steel sheet having a predetermined chemical composition is annealed at 1000° C. for 30 seconds in a nitrogen atmosphere and then immersed in a solution of 7% HCl at 80° C. for 60 seconds is in a range of 40 g/m2 or more and 100 g/m2 or less. A hot-rolled steel sheet for production of a non-oriented electrical steel sheet with not only excellent magnetic properties such as iron loss and magnetic flux density but also excellent recyclability and steel sheet surface appearance can thus be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.