用白钨矿、氧化钼和钒渣冶炼M2钢的脱磷研究

Research on Dephosphorization during Smelting M2 Steel with Scheelite,Molybdenum Oxide and Vanadium Slag

运用热力学理论和通过工业试验对冶炼M2钢进行了脱磷研究。研究表明 :用CaO渣系氧化脱磷时 ,[W]、[Mo]不会氧化 ,但 [Cr]、[V]氧化损失严重 ;用BaO渣系氧化脱磷时 ,[P]先于 [Cr]、[V]氧化 ;用Ca、CaC2 、CaSi可实现还原脱磷 ;还原法脱磷用于冶炼M2钢比冶炼不锈钢更有效。

The research on dephosphorization during smelting M2 steel is carried out by thermodynamics and industrial trial,the result of which shows that[W]and[Mo]are not oxidized while [Cr]and[V]are oxidized and lost seriously when using Cao slag for oxidizing-dephosphorizing.[P]is oxidized preferentially to [Cr]and[V]when using BaO slag for oxidizing-dephosphorizing.So reducing-dephosphorizing is available when using Ca,CaC 2 or CaSi.Reducing dephosphorizing for smelting M2 steel is more effective than that for smelting stainless steel.