在一个铸型内铸造运动部件用压铸法制造由许多部分组成的运动部件是一种先进的操作方法。这种方法是先把一部分铸出,待其冷却后,然后以它为基础,铸出下一部分。这样,第一部分就成了第二次注入金属的型腔的一部分。图1所示活销结合圆环就是这样制成的。把金属注入铸型形成圆坏的前一半,待这一半凝固后,再将金属注入铸型形成圆环的后一半。金属充满榫舌部周围并通过已硬化和激冷的枢轴孔。销钉就这样形 Casting a Moving Part in a Mold Making a moving part with many parts by die casting is an advanced method of operation. This method is to cast a part of the first, to be cooled, and then based on it, cast the next part. In this way, the first part became part of the second metal injection cavity. The pin shown in Figure 1 is made in this way. The metal is injected into the mold to form the first half of the circle, and after this half solidifies, the metal is injected into the mold to form the second half of the circle. Metal fills around the tongue and passes through hardened and chilled pivot holes. Pin is so shaped