摘要
型砂的热物性参数对铸造凝固过程数值模拟结果有很大影响,得到准确的型砂热物性参数对提升铸造数值模拟的准确性意义重大。本文通过现场试验测得了实际铸造型砂的降温曲线,在仿真模拟软件中对型砂热物性参数进行反算优化,并与现场实测的降温曲线匹配拟合,最终确定出与现场匹配的型砂热物性参数用于今后的数值模拟计算中,提升数值模拟准确性,为今后的工艺设计提供更可靠的指导。
The thermal physical parameters of molding mixture have a great influence on numerical simulation results of casting solidification process,so it is of great significance to obtain accurate thermal physical parameters of molding mixture to improve the accuracy of numerical simulation of casting.In this article,the actual cooling curve of molding sand was measured by field test,and then to matching with the cooling curve in simulation software to optimize the thermal physical parameters.Using the accuracy thermal physical parameters of molding mixture in the numerical simulation can improve the accuracy of numerical simulation and provide more reliable guidance for the future process design.
作者
何媛
苏少静
宋亮
HE yuan;SU shao-jing;SONG liang(Kocel Machinery Limited,Yinchuan Ningxia 750021,China)
出处
《铸造设备与工艺》
2021年第3期26-28,共3页
Foundry Equipment & Technology
基金
宁夏回族自治区重点研发计划(2019-YG-014)。
关键词
热物性参数
型砂
数值模拟准确性
thermal physical parameters
molding mixture
accuracy of numerical simulation
