Blow lance for treating molten metal in metallurgical vessels
US4792126A · kind A · utility
7Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1987 |
| Grant date | Dec 20, 1988 |
| Priority date | — |
| Expiry date | Mar 12, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D3/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A blow lance for treating molten metal comprising a concentric metal pipe structure enclosed within a ceramic covering with a space defined between the pipe structure and the covering. A layer of heat-resistant elastic fibrous material, excluding a binder, is positioned in the space. Ducting means forming coolant ducts are located between the concentric pipes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.