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为确保注塑成形的塑件合格,设计师往往将塑件壁厚设计得尽可能均匀。注射成形工艺虽适用于制造形状复杂的塑件,但该工艺并不是制造壁厚变化较大塑件的最佳工艺。而另一些工艺方法,如发泡成形、逆流注射成形和压缩成形则较适当用于制造壁厚极不均匀的塑件,且质量也高。 1.壁厚不均导致收缩不一致注射成形非均匀塑厚的塑件时,注入型腔的熔料会产生流动不均匀的现象,进而在塑件
To ensure the plastic injection molding parts, designers tend to design the plastic wall thickness as evenly as possible. Although the injection molding process is suitable for the manufacture of complex shapes, it is not the best process for making plastic parts with large wall thickness variations. While other processes, such as foam molding, counter-flow injection molding and compression molding are more appropriate for the manufacture of very uneven wall thickness of plastic parts, and high quality. 1. Inconsistent wall thickness caused by inconsistent injection molding non-uniform plastic thick plastic parts, the melt injected into the cavity will have uneven flow phenomenon, and then plastic parts