Casting in a exothermic reduction atmosphere
US5043029A · kind A · utility
4Cited by
3References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1990 |
| Grant date | Aug 27, 1991 |
| Priority date | — |
| Expiry date | Dec 13, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/0697
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An apparatus and method for casting metal strip include a moving chill body that has a quench surface. A nozzle mechanism deposits a stream of molten metal on a quenching region of the quench surface to form the strip. The nozzle mechanism has an exit portion with a nozzle orifice. A depletion mechanism supplies a reducing gas to a depletion region located adjacent to and upstream from the quenching region. The reducing gas reacts exothermically to lower the density provide a low density reducing atmosphere within the depletion and substantially prevent formation of gas pockets in the strip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.