10 Problems and Solutions in Mold Trial

This article is talking about the ten problems and solutions in injection mold trials. Here we go!
A common problem in mold trial 1: The Main sprue sticking to the injection mold
Method and order to solve the problem.
1. To polish the main sprue
2. Nozzle and mold center coincide
3. Lower the mold temperature
4. Shorten the injection molding time
5. Increase the cooling time
6. Check nozzle heating ring
7. Polish the mold surface
8. Check the material, and screw for contamination.