Grain-oriented silicon steel sheet and process for production thereof
US6287392A · kind A · utility
4Cited by
4References
6Claims
0Family size
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Key dates
| Filing date | Sep 17, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Sep 17, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D8/1283
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Grain-oriented silicon steel sheet with Bi as an auxiliary inhibitor and a forsterite coating film having a Cr spinel oxide subscale of FeCr.sub.2 O.sub.4 or Fe.sub.x Mn.sub.1-x Cr.sub.2 O.sub.4 (0.6.ltoreq.x.ltoreq.1), made from a steel slab containing 0.005-0.20 wt % of Bi and 0.1-1.0 wt % of Cr.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.