Mould cover for continuous casting of steel, especially very-low-carbon steels
US5876482A · kind A · utility
7Cited by
1References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1996 |
| Grant date | Mar 2, 1999 |
| Priority date | — |
| Expiry date | Sep 20, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/111
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A powder for covering an ingot mold for the continuous casting of steel, in particular steels with ultra-low carbon content. The powder comprises a base powder and particles of at least one metal nitride, its free carbon content (%C.sub.free) being between 0 and 1% by weight, it being produced by atomization, and having the form of granules of between 20 and 800 .mu.m in diameter. In one application of the invention, the nitride is silicon nitride, and its weight content (%Si.sub.3 N.sub.4) is equal to: %Si.sub.3 N.sub.4 =0.5-0.28.times.%C.sub.free .+-.0.10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.