Injection Molding
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Short Shot (Underfilling) in PCTG '2079851475616104452
Problem Phenomenon
The product cavity is not completely filled.
Cause Analysis
The melt temperature is low and the flowability is poor, the injection pressure and speed are insufficient, the gate and runner are too small, and the mold temperature is low.
Solution
Increase the melt temperature to 230-250°C; increase the injection pressure and speed; enlarge the gate size; appropriately increase the mold temperature.
Key Takeaway
PCTG short shot is related to insufficient flowability.
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