根据近年来国内外合金钢电炉和连铸技术的进展，提出电炉合金钢棒材生产线的评价建议。并针对国内电炉合金钢棒材企业现有的8种公称吨位电炉与高效连铸机、轧机组合构成现代棒材生产线的配置方案进行了合理性研究。指出：按照国际电炉流程的发展趋势1台电炉→1套精炼设施→1台连铸机→1台主力连轧机发展要求，100 t以上电炉生产能力较大，一是造成连铸机流数过多；其次，连铸坯断面尺寸过大，给轧机配置造成困难，不适合用于合金钢棒材厂，比较适合于板材厂。结合中国当前以电炉生产机械加工、汽车制造用钢的特殊钢企业的实际情况，50～90 t电炉是生产棒材的合理选择吨位，由其组成的电炉炼钢厂的规模应是40～90万t/a。
With the development of the alloysteel and continuous casting technology at home and broad in recent years,the authors put forward some suggestions for the alloy steel bar production by using EAF steelmaking process.And the practicability of matching eight kinds of EAF with continuous casters and rolling mills to produce modern bar is also discussed.The popular trend in the world in EAF steel manufacture process (1 EAF→1 refining furnace→1 continuous caster→1 main rolling mill) is that the capacity of over 100 tons EAF is widely used.But this is too high,and it will need too many cast strands of the continuous caster on the one hand and too bigger form of section on the other,which will impose difficulty on providing the suitable rolling mill to match with it.As a result,this EAF suits the plate plant better rather than alloy bar plant.Based on the current fact that the special steel plant uses EAF to produce machinery and the products are more used in the automobile industry,5090 tons EAF is the reasonable choice to produce bar steel, and the production scale should be limited to 40×104×90×104 t/a.
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