冷坩埚熔炼过程中金属凝壳的数值模拟  

Numerical Simulation of Metal Solidification Shell in Cold Crucible Melting Process

作　　者：赵定国[1] 李伟峰[1] 王书桓[1] 宋春燕[1] 李秋京[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》2015年第10期2490-2493,共4页Foundry Technology

基　　金：河北省自然科学基金资助项目(E2013209113)

摘　　要：针对冷坩埚熔炼过程热能的利用率低的问题,利用ANSYS软件对冷坩埚熔炼过程进行温度场的数值模拟,分析电源参数、水冷强度对凝壳厚度的影响,并计算出实验条件下最合适的凝壳厚度。结果显示,最合适的凝壳厚度为20.5 mm,电流强度为340 A,电源频率为100 k Hz,冷却水量为76.1 L/min,此时冷坩埚熔炼过程能量利用率最高。Aiming at the low utilization rate of heat energy in cold crucible melting process,the numerical simulation of the temperature field in cold crucible melting process was conducted using ANSYS software,the influence of power supply and water cooling strength on solidified shell thickness were analyzed,and the most appropriate solidified shell thickness in experimental conditions was calculate.The results show that the most suitable solidified shell thickness is 20.5 mm,current strength is 340 A,power supply frequency is 100 k Hz,water cooling intensity is 76.1 L/min.At this time,the energy utilization rate is the highest in cold crucible melting process.

关 键 词：冷坩埚 能量利用率 电源参数 水冷强度 

分 类 号：TF19[冶金工程—冶金物理化学]