一、序为研究型砂的压实机构,作者曾对有关型砂的力学性质及造型时型内应力分布进行了实验和理论方面的研究。本文对改变铸型形状和型砂种类等,在压实过程中进行了型内比压分布的测定和计算,并作了比较和分折,研究了有关比压分布的各种影响因素。 First, the sequence for the study of sand compaction mechanism, the author has made on the mechanical properties of sand and shape when the type of stress distribution experiments and theoretical aspects. In this paper, changing the shape of the mold and the type of sand and so on, in the compaction process of the determination of the pressure distribution and calculation, and made a comparison and analysis of various factors related to the pressure distribution.