电弧炉钨钼钒氧化物矿直接合金化冶炼高速钢工业试验

通过改变装入制度、采用低碱度渣工艺和控制渣量等措施，实现了在重庆特钢20 t 工业电弧炉 内完全用白钨矿、氧化钼、V?O? 直接合金化冶炼M2(%:0.80~0.90C,3.8～4.4Cr,5.50～6.75W,4.5～5.5Mo,1.75~2.20V)高速钢，合金化率达到W]+Mo]+V]=13% 合金元素收得率(%):W 95.25,Mo 98.01,V 90.72,冶炼周期283 min,电耗585 kWh/t,成品钢材质量满足标准要求

Industrial Test of High Speed Steel Making in Electric Arc Furnace by Direct Reduction and Alloying with Tungsten Molybdenum Vanadium Oxide Ore

The Industrial test of steel making of high speed steel M2(0.80～0.90C,3.8～4.4Cr,5.50～6.75W, 4.5~5.5Mo,1.75～2.20V)by direct reduction and alloying with scheelite,molybdenum oxide and V₂O₅ ore has been carried out in a 20 t electric arc furnace at Chongging Special Steel.The results showed that the alloying rate was up to w] +Mo]+V]=13%,the yield of W,Mo and V alloying element was 95.25%,98.01% and 90.72% respectively,the average tap-to-tap time was 283 min,the electric power consumption was 585 kWh/t and the quality of products met the requirement of standard