I have maken a series of special sample pieces, and researched the shrinkage characteristics of solidification on the metallurgy and technics factor, and drawn a certain rule.

• 作者结合自身工作实践,在实验室中利用制作的一系列特制试块,对影响试块凝固过程收缩特性的工艺因素和冶金因素进行了研究,并得出了一定的规律;