Electro magnetic steels
US4309228A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1980 |
| Grant date | Jan 5, 1982 |
| Priority date | — |
| Expiry date | Mar 24, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D8/1244
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing a non-silicon steel for electro magnetic applications includes the steps of producing a vacuum de-gassed steel melt containing less than 0.025% by weight of carbon, between 0.1% and 1.0% of manganese, between 0.01% and 0.15% phosphorus, not more than 0.02% of sulphur, not more than 0.007% of nitrogen, with titanium within the range of 0.05% to 0.25%, the reminder being iron, except for incidental impurities, hot rolling slab derived from the melt, using a finishing temperature within the range 900.degree. C. to 950.degree. C. and coiling the resulting hot rolled strip at a temperature of not less than 700.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.