Analysis of the causes of unstable size of injection molded products -1
Aug 23, 2019
The dimensional change of plastic parts is essentially caused by the different shrinkage of plastics. Any change in material temperature, mold, pressure, and production cycle will lead to changes in the size of the part, especially PP, PE, nylon, etc. with higher crystallinity. The main reasons are as follows: 1. Machine side: (1) If the plasticizing capacity is insufficient, a machine with a larg...
