镁合金圆锭电磁悬浮连续铸造过程温度场的数值模拟  

Numerical Simulation of Temperature Field during Electromagnetic Suspension Continuous Casting of Magnesium Billets

作　　者：邱月[1] 张兴国[1] 郝海[1] 任政[1] 隋里[1] 齐国红[1] 

机构地区：[1]大连理工大学铸造中心,大连116024

出　　处：《机械工程材料》2010年第5期81-85,93,共6页Materials For Mechanical Engineering

基　　金：国家自然科学基金资助项目(50475157;50875031)

摘　　要：采用有限差分法和Visual C++6.0软件建立了AZ31镁合金电磁悬浮连续铸造过程的数学模型,应用该模型对镁合金圆锭电磁悬浮连续铸造过程温度场进行了模拟,并与实际测量温度进行了比较。结果表明:该模型可以用来模拟实际铸造过程;随着悬浮剂(20%ZrB_2+80%AZ31)含量的增加,悬浮铸造合金初始温度降低,冷却速率增加,凝固时间缩短。A mathematical model of the electromagnetic suspension continuous casting process for AZ31 magnesium alloy billets had been built up using Microsoft Visual C＋＋6.0 software and finite difference method （FDM）.The temperature field during electromagnetic suspension continuous casting of magnesium billets was simulated by the model and compared with the actual measured temperature.The results show that the model could be used to simulate the actual casting process.The initial temperature of the suspension casting alloy declined, cooling speed increased and solidifying time of billets shortened with increasing the content of suspension particles （20%ZrB_2＋80%AZ31）.

关 键 词：镁合金 电磁悬浮连续铸造 温度场 数值模拟 

分 类 号：TG335.1[金属学及工艺—金属压力加工]