一、引 言 壳型铸造由于用它制得的铸件尺寸精确,表面光洁以及其它一些优点,在铸造领域仍占有重要的地位。但是,当采用以石英砂为基的复膜砂进行生产时,常常出现铸件尺寸超差或变形,生产厚壁铸件时尤其如此。因此,围绕着如何控制和提高壳型铸件的尺寸精度问题国内外的铸造工作者进行了大量的研究工作。H.Stehlik利用回归分析法研究了浇注条件下壳型型壁的运动, I. INTRODUCTION Shell casting still has an important place in the field of foundry due to its precise size, smooth finish and other advantages. However, oversize or deformation of castings often occurs when using quartz sand-based lamellar sand, especially when producing thick-walled castings. Therefore, a great deal of research work has been carried out by domestic and foreign foundry workers around how to control and improve the dimensional accuracy of shell castings. H.Stehlik using regression analysis of the casting conditions under the shell wall movement,