What should be paid attention to in the production of PE injection molds

Update:30-05-2019
Summary:

What should be paid attention to in the production of P […]

What should be paid attention to in the production of PE injection molds by mold manufacturers? PE is a crystalline raw material with minimal hygroscopicity, so there is no need for drying treatment before processing. It has low viscosity and excellent fluidity, so it can form thin-walled products without much pressure.

Due to the large shrinkage range of PE, the shrinkage rate is 1.22, so it is easy to be deformed. The technicians of PE injection mold manufacturers know that the mold cooling condition has a great influence on the shrinkage rate, and the mold temperature is designed to keep the cooling uniform and stable. To solve the deformation, the PE part has a soft texture and is easy to demould, so when the plastic part has a shallow side groove, it can be strongly demolded.

As long as you are familiar with these properties, mold engineers can reasonably avoid the problems that are easy to occur when designing PE injection molds. Avoid the loss of the back.