冷坩埚感应凝壳的热平衡模型研究  

Research on Heat Balance Model of Cold Crucible Induction Shell

作　　者：李伟峰[1] 赵定国[1] 王书桓[1] 

机构地区：[1]河北联合大学冶金与能源学院,河北唐山063009

出　　处：《铸造技术》2014年第5期998-1000,共3页Foundry Technology

基　　金：河北省自然科学基金项目资助(E2013209113)

摘　　要：对冷坩埚中钢液凝壳熔炼工艺进行了研究,介绍了冷坩埚中凝壳熔炼工艺避免被坩埚材料污染、节能、产品质量好等优点及凝壳形成过程的凝固机理;在理论基础上建立了冷坩埚熔炼感应凝壳的热平衡模型,在实验条件下,对凝壳厚度作出了计算,分析了水冷导热量和感应加热功率两个因素对凝壳厚度的影响。结果表明,在实验条件下,当水冷导热量为8.8 J/s,感应功率为8.8 kW时,最适宜凝壳厚度为1.1 cm,保证冷坩埚熔炼顺利进行。The solidified shell melting technology of steel liquid in cold crucible was studied, and the advantages of the solidification shell in cold crucible melting process, such as avoiding polluting crucible material, saving energy and good product quality, and the mechanism of solidification shell formation were introduced. The heat balance model was established based on theory, the thickness of solidified shell was calculated under experimental conditions, and the effects of heat conduction of water-cooling and induction heating power on the thickness of solidified shell were analyzed. The results show that the optimum thickness of solidification shell is 1.1 cm when the water-cooling heat conductivity is 8.8 J/s and the inductive power is 8.8 kW in experimental condition, which can ensure the smooth progress of cold crucible melting.

关 键 词：冷坩埚 凝壳熔炼 感应加热 水冷导热 凝壳厚度 

分 类 号：TF703[冶金工程—钢铁冶金]