钢铁钒钛2025，Vol.46Issue(2)：33-38,6.DOI:10.7513/j.issn.1004-7638.2025.02.005
V2O3粉末真空铝热法制备AlV55合金的研究
Preparation of VAl55 alloy by vacuum aluminothermy with V2O3 powder
摘要
Abstract
Using V2O3 and Al powder as raw materials,A1V55 alloy was prepared by vacuum alumino-thermic reduction method.The process of preparing vanadium-aluminum alloy by aluminothermic method was analyzed using thermodynamic software and differential thermal analysis method.The res-ults showed that the thermodynamic calculation of aluminothermic reduction reaction at room temperat-ure can reduce V2O3 to V in one step.The actual reduction process is carried out in stages,with a start-ing temperature of 749℃,belonging to the category of liquid-solid reactions.The unit thermal effect is 2 239.65 J/g,and the adiabatic combustion temperature is 1 728.7℃.The effects of insulation temperat-ure and the amount of slag forming agent calcium oxide added during vacuum heating on vanadium yield were studied.When the insulation temperature exceeded 1 650 ℃,the vanadium yield of vana-dium-aluminum alloy could reach about 95％.The vanadium-aluminum alloy ingot had no cracks or ox-ide film,and the yield of vanadium-aluminum alloy was significantly improved.In addition,the influ-ence of CaO/Al2O3 ratio on slag viscosity was also determined.When the amount of slag forming agent exceeded 22.5％,the separation effect of slag and metal was significantly improved.关键词
钒铝合金/铝热还原/造渣剂Key words
vanadium-aluminum alloy/thermite reduction/slag-forming agent分类
矿业与冶金引用本文复制引用
张苏新,常福增,祁健,张娜..V2O3粉末真空铝热法制备AlV55合金的研究[J].钢铁钒钛,2025,46(2):33-38,6.基金项目
河北省重点研发计划资助项目(编号:20311008D) （编号:20311008D）
承德市可持续发展示范区专项(编号:202302F011). （编号:202302F011）
