通过三维造型软件对蝶阀体创建实体三维造型,采用JSCAST软件模拟分析铸件的凝固及充型过程,预测铸件在铸造过程中所可能产生的裹气现象、充填不良、缩松及缩孔等缺陷问题,根据模拟的结果优化工艺参数。结果表明,铸造工艺经过改进后,充型时较为平稳,结束充型后铸件上的温差很小,且按照一定顺序进行凝固,无有害的热节存在,同时缩松及缩孔现象消失。 The three-dimensional modeling software is used to create the solid three-dimensional shape of the butterfly valve body. JSCAST software is used to simulate the solidification and filling process of the castings to predict defects such as entrapment, poor filling, shrinkage and shrinkage of the castings during the casting process , According to the simulation results optimize the process parameters. The results show that after the casting process is improved, the filling process is relatively stable. The temperature difference at the end of the filling process is very small, and the solidification takes place in a certain order without harmful hot joints. At the same time, the shrinkage and shrinkage cavities disappear.