基于ProCAST有限元模拟对衬板铸造工艺参数的优化

Optimization of Lining Casting Process Parameters Based on ProCAST Finite Element Simulation

选取衬板铸件及铸型方案作为研究对象,结合衬板铸件的结构和高铬白口铸铁的特性,对4种不同充型速度下的温度场和流场进行了有限元数值模拟。结果表明,衬板铸件的温度变化不是沿着从浇口到冒口方向梯度变化的。当充型速度20 kg/s时,衬板铸件中心区域可见“隔断式”温度变化,充型金属液保持规则的层状流动。当充型速度30 kg/s时,充型的金属液具有湍流的特征。

The finite element numerical simulation of temperature and flow fields under four different filling velocities was carried out by selecting the liner castings and casting mold schemes as the research objects, combining the structure of liner castings and the characteristics of high chromium white cast iron. The results show that the temperature change of the lining casting is not along the gradient from the gate to the riser. When the filling speed is 20 kg/s, "partition" temperature change can be seen in the center area of the lining casting, and the filling molten metal keeps regular lamellar flow. When the filling speed is 30 kg/s, the molten metal filled has the characteristics of turbulent flow.