Casting in an exothermic reduction atmosphere
US4869312A · kind A · utility
3Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1986 |
| Grant date | Sep 26, 1989 |
| Priority date | — |
| Expiry date | Aug 20, 2006 |
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 includes 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 to 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.