Apparatus and method for sequential removal of oxides from steel
US6406550B1 · kind B1 · utility
5Cited by
3References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2000 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Jun 7, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B45/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Oxides on the surfaces of metal are reduced by directing reducing gases at them in a forceful and turbulent manner. In a preferred version, the gas is passed through at least two reducing zones designed to maintain a higher concentration of reducing gas in at least one of them than would be the case in a single reducing zone. The oxide-bearing surface is heated at the beginning of the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.