Molds & Tooling
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Product breaks unevenly at the gate
Problem Phenomenon
The product breaks unevenly at the gate, residual gate material affects appearance, poor cut surface quality when automatically cutting the gate
Cause Analysis
Gate size too large, large break area
Gate located in a stress concentration area
Gate not yet fully solidified during demolding
Insufficient cooling in the mold gate area
Excessive difference between product wall thickness and gate thickness
Solution
Reduce gate size for neat cutting
Set the gate away from stress concentration areas
Extend cooling time to ensure gate solidification
Strengthen gate area cooling
Reasonably design the ratio of gate to wall thickness
Key Takeaway
Gate breaking requires optimizing gate size and cooling
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