The oxy-gas torch “DONMET” 292 is used at the initial stage of melting metal charge with the energy of arc heating that is being fed at the maximum transformer capacity. Upon reaching the average charge temperature 900-1100°C the torch is turned off, thus begins the process of purging the molten pool with the carbonaceous powder injected oxygen that is kept up until all charge is melted.
TECHNICAL SPECIFICATION
| Pressure, bar | – oxygen | 5 – 10 |
| -natural gas (methane) | 0,7 – 1,5 | |
| – water | 2 – 5 | |
| Витрата, м³/год | – oxygen | 1500 – 1800 |
| -natural gas (methane) | 250 – 300 | |
| Rate of heat flow when operating on natural gas (methane), MW | 6–9 | |
| Flame temperature when operating on natural gas (methane), °C | 1850-1900 | |
| Torch length no more than, mm | 1050 | |
| Torch weight no more than, kg | 70 | |
