梯度石墨铸铁玻璃模具液态模锻模拟与仿真.

In order to solve the problems of low yield and easy shrinkage cavity and porosity in the traditional sand casting process of cast iron glass mold, the liquid die forging process was adopted, and the graphite shape of the casting was distributed in gradient by different cooling conditions. The temperature field and solidification field of liquid die forging process were simulated by Procast, shrinkage cavity and porosity defects were predicted, and the key process parameters such as pouring temperature, cooling mode and gate size were adjusted and optimized, and the microstructure of different parts of the casting was predicted according to the view of thermal analysis. The results show that liquid die forging can effectively reduce shrinkage defects. [ABSTRACT FROM AUTHOR]