- During last twenty years,in west Germany mainly top oxygen blowing converter and electricarc furnace processes have been developed.
- Compared with the 4-hole cast oxygen lance made in America, the splashing and oxygen blowing time are reduced, melting slag and dephosphorization rate are improved.
- For un-deoxygenated molten steel, the present invention also provides the calculation method of determining the required oxygen blowing amount before quieting.
- These play an important role in high efficiency oxygen blowing of converter, steelmaking with hot metal containing low silicon and the exploitation of slag splashings for protecting lining.
- The candle was blown out by the wind.
- Brush off the fuzz that has blown on.