Steel production method
US3951643A · kind A · utility
1Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1974 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Feb 11, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An electric arc furnace pivotable between a first position wherein a gas delivery tuyere system is above the level of a metal charge for preheating the same and a second position wherein the tuyere system is below the level of metal charge to permit the injection of gases, fluxes, ores, alloying additions and other materials for converting a metal charge. A first furnace hood is engageable with the furnace when in its first position for positioning electrodes in the furnace and a second hood is engageable with the furnace when in its second position for withdrawing gases evolved during the gas blowing period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.