使用Matlab软件开发了复合材料的热物性参数计算系统,并使用该系统获取了TiB_2/A356复合材料的热物性参数,并导入PROCAST的数据库对其热物性参数进行二次开发,对铸件熔模铸造过程进行模拟。模拟结果显示,铸件缩孔、缩松严重,且空隙率较大。分析缺陷产生的原因为增强体的加入使得液体流动性变差,补缩能力较弱。最后通过正交试验法获得流动性较好的A356铝合金,并通过提高浇注温度得到浇注结果合格的铸件。 The thermophysical parameter calculation system of composite material was developed by using Matlab software. The thermophysical parameters of TiB_2 / A356 composite material were obtained by using this system. The thermophysical parameters of TiB_2 / A356 composite material were imported into PROCAST database for secondary development. Process simulation. The simulation results show that the casting shrinkage, shrinkage serious, and larger porosity. The reason for the analysis of the defects is that the addition of the reinforcing body deteriorates the fluidity of the liquid and weakens the filling ability. Finally, the better fluidity of A356 aluminum alloy was obtained by orthogonal test and the castings with good pouring results were obtained by increasing the pouring temperature.