Method of treating boron-containing steel
US4251268A · kind A · utility
5Cited by
5References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 8, 1979 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Nov 8, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21C7/0006
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of treating boron-containing steel for continuous casting, especially for teeming or pouring into small sectional shapes or formats with unregulated nozzles. There is introduced into the molten steel located in the casting ladle, by means of an inert carrier gas, in a powder form calcium or a compound thereof, at least one element forming a stable nitride at the melt temperature of the steel and boron or a boron compound. The thus treated steel is protected from renewed reaction with air along its path between the ladle and the continuous casting mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.