Page 341 - Injection Molding Advanced Troubleshooting Guide

35 Part Sticking on Cover

„ „35.1„ Description

Parts can tend to stick on either the cover or the ejector side of the mold. Solutions
can be different depending on which side of the mold the part is sticking on.

„ „35.2„ Part Sticking on Cover Troubleshooting
Chart

Table 35.1 shows the part sticking on cover troubleshooting chart.

Table 35.1 Part Sticking on Cover Troubleshooting Chart
Molding Process Mold Machine Material
high second-stage mold damage process control moisture content
pressure
melt temperature lack of draft material type
high mold temperature surface finish lack of release agent
mold open breakaway vacuum
speed
cavity balance
buildup
ejector half detail