本文通过对具有一定表代性的反压砂型铸造铝合金薄壁壳体件的充型过程,凝固温度场及其相应的凝固规律的研究,获得了反压铸造工艺下该类铸件温度场、充型过程和凝固规律的第一手数据。所取得的结果不仅为保证该类铸件的质量和进一步改进工艺提供了科学依据,也为进而建立反压铸造薄壁壳体件凝固过程计算机模拟及工艺设计CAD软件提供必要的实验基础。 In this paper, the filling process, the solidification temperature field and the corresponding solidification law of the anti-pressure sand casting aluminum alloy thin-walled shell parts with a certain representative on behalf of the table were obtained, the temperature field, Filling process and solidification law of the first-hand data. The results obtained not only provide a scientific basis for the quality of the castings and further improve the process, but also provide the necessary experimental basis for further establishment of computer simulation and process design CAD software for solidification process of thin-walled shell parts by backpressure casting.