电渣熔铸钢锭应力场的模拟研究

Simulation Analysis of Steel Ingot Stress Field in Electroslag Casting Process

针对电渣熔铸钢锭各部位温差大,易产生热应力及测量困难的特点,采用大型有限元分析软件ANSYS对电渣熔铸过程中不同冷却水流量时的钢锭应力场进行了模拟研究。结果表明,随着冷却水流量增加,钢锭底部最大等效应力和轴向应力均增大。模拟结果与实际相吻合,运用此模型可预测钢锭应力场状况,指导实际生产。

Because of the great difference in temperature in different part of steel ingot in electroslag casting process, the thermal stress is easy to occur and difficult to measure. In view of this characteristics, the steel ingot stress fields with different flux of cooling water were simulated using the finite element analysis software ANSYS. The result shows, with the increase of flux of cooling water, both the maximum equivalent stress and the maximum axial stress gained from the bottom of steel ingot are increased. The result of the simulation tallies with the practice. This model can be used to predict the condition of the steel ingot stress field, and to direct practical production.