利用氧化钼钒渣合金化冶炼ZG20CrMoV钢

Using Molybdic Oxide and Vanadium Slag Smelting ZG20CrMoV Steel

介绍了采用氧化钼代替钼铁、钒渣代替钒铁直接合金化冶炼ZG2 0CrMoV钢的基本理论及工艺技术。探讨了炉渣碱度、还原剂、粒度、温度等因素对合金元素回收率的影响 ,并对产品质量进行了分析 ,研究结果表明 ,在 10kg中频感应炉上采用氧化钼、钒渣同时直接合金化生产ZG2 0CrMoV钢的新工艺是可行的。结果表明 :冶炼顺利 ;产品成分合格、机械工艺性能良好、钢质优良 ;合金元素收得率高且稳定(ηCr>95 %、ηMo>95 %、ηv>95 % ) ;新工艺可以在生产中推广应用。

This paper introduces the fundamental theory and technology feasibility of using molybdic oxide instead of molybdenum iron and vanadium slag instead of vanadium iron to smelt ZG20CrMoV steel. The effect of recovery efficiency of alloy elements is discussed, such as basicity of slag , selection of reducing agent, granularity, temperature and so on.The quality of product is analysed too. The results show the direct reducing alloying with MoO 3 and vanadium slag for smelting ZG20CrMoV steel is possible in 10 kg mid frequency in duction furnace. The results are the following: the smelting is smoothly; the composition of product is eligibility. quality and mechanical properties of steel is good, the recovery efficiency of alloy elements is high and stable ( η Cr >95%? η Mo >95%? η V>95%). The new technology can be used and extended in production.