How to avoid contact between oxygen and molten metal
US6415849B1 · kind B1 · utility
2Cited by
3References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 13, 1999 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Aug 13, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22D11/0697
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Method of preventing contact of oxygen with a metal melt during continuous casting, the metal melt flows into a casting chamber bounded by rolls and a hood and leaves this chamber as a stream. To completely prevent contact of oxygen with the metal melt and thus reoxidation, oxygen attempting to enter via any gaps between the walls and/or adhering to the walls is removed by suction applied at a succession of suction stages at the periphery of each roll before a gap between the hood and the roll at the top of the casting chamber. Inert gas may then flow to the rolls near the gap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.