How to remove the shrinkage on plastic surface
Click： Time：2019-06-04 13:49:09
Shrinkage often appears on the reverse side of the boss and rib of plastic parts, because when thicker wall is cooling ,will raise bigger shrinkage force to make the reverse surface sunken .we can try to use below ways to settle it . 1) Increasing injection pressure. 2) To adjust mould temperature,must not too high or too low. 3) Prolong mould holding time . 4) To check mould structure to guarantee the cooling time is similar everywhere. 5) Decreasing material temperature. 6) Adding foaming agent in plastic sometimes can settle shrinkage well. 7) Adjusting part structure to avoid thick walls.
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