本文从理论探索到小规模工业试验结果证实,含硫0.11～0.8％,碳2.1～2.45％,低硅锰的半钢通过喷射冶金新工艺可得到优质铸铁和电炉强化脱硫工艺炼成优质钢,对于该两种工艺的经济效益分析,认为半钢炼成优质铸铁比较合理。 喷射冶金工艺流程为:半钢温度大于1400℃,在铁水包中先喷吹1.3～2.8％碳粉,增碳至3.5％C以上,然后向已增碳的铁水中喷吹1～2％脱硫剂,脱硫至小于0.05％,最后进行合金化处理可得到优质铸铁。 This paper from the theoretical exploration to small-scale industrial test results confirmed that the sulfur content of 0.11 ~ 0.8%, carbon 2.1 ~ 2.45%, low-silicon-manganese semi-steel through the injection of new metallurgical technology can be high quality cast iron and electric furnace enhanced desulfurization process into high-quality steel, For the two economic benefits of the process, that semi-steel into high-quality cast iron is more reasonable. Spray metallurgy process is: semi-steel temperature is greater than 1400 ℃, the first injection in the ladle of 1.3 to 2.8% carbon powder, carbon to 3.5% C above, and then injected into the carbon has been increased by 1 to 2% hot metal desulfurization Agent, desulfurization to less than 0.05%, the final alloying treatment can get high-quality cast iron.