Injection Molding
9 views
Burning at mold filling end in PCTG '2079851475616104452
Problem Phenomenon
Burn marks appear far from the gate.
Cause Analysis
Poor venting at the cavity end; air compressed to high temperature burns material, improper position design.
Solution
Add vent grooves at the end; vacuum-assisted venting; reduce injection speed.
Key Takeaway
PCTG end burning points to dead-corner air.
Was this helpful?
0 people found this helpful
Thank you for your feedback!