摘要
对空心钢锭凝固过程的温度场进行了有限元分析 ,讨论了芯部传热系数、耐火材料厚度对最终凝固位置、内筒壁最高温度及缩孔疏松的影响 ,并研究了耐火材料典型部位的温度随凝固时间的变化。通过凝固过程的温度场的模拟分析 ,对空心钢锭缩孔、缩松进行了预测 。
Temperature field of hollow ingot solidification is simulated by FEM.Effects of heat transfer coefficient between inner sleeve and cooling medium and thickness of refractory on the final position of solidification,the highest temperature of inner sleeve against cooling medium and the shrinkage cavity and porosity are discussed.In addition,change of temperature in typical position of refractory with solidification time is given,the shrinkage cavity and porosity are predicted.
出处
《铸造》
CAS
CSCD
北大核心
2000年第6期343-348,共6页
Foundry
基金
原机械工业部机械工业发展基金资助项目! (I 0 1 7)
关键词
数值模拟
空心钢锭
凝固
温度场
缩孔
疏松
numerical simulation
hollow ingot
solidification
temperature field
FEM
cast defect
