摘要
对铜材水平连续铸造凝固过程的温度场进行了数值模拟。对拉铸速度和冷却条件等主要工艺参数的影响进行了计算分析。计算结果用实验进行了校核。
To investigate the temperature distribution and solidification shell profile in a continuous casting machine for round bars, transient mathematical models, describing the thermal process, have been developed.Then Finite Element Method (FEM) has been used to simulate the solidification process and design the FEM program.Sensitivity of the predicted results to various numerical approximation including grid configuration, calculated bar length, mushy zone latent heat treatment and choice of effective thermal conductivity have been extensively studied. It is shown that assumption innuences the predicted results.Parameters investigated are casting speed, casting temperature and cooling conditions. It is shown that different parameters have different influence on the thermal process and must be carefully controlled in continuouscasting process.Finally, the predicted results are compared with the experimental results. In contrast to some earlierclaims, these indicate to moderate agreement between model predictions and experimental results.
出处
《塑性工程学报》
CAS
CSCD
1996年第2期7-13,共7页
Journal of Plasticity Engineering
关键词
数值模拟
温度场
水平连铸
Numerical Simulation, Temperature distribution, Continuous casting
