Blow Molding
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Capacity deviation of PET stretch-blow bottles
Problem Phenomenon
The deviation between actual and nominal capacity of PET bottles exceeds ±1.5%, failing to meet filling requirements.
Cause Analysis
Preform weight deviation causes different capacities after stretching; '2079851475616104457 pressure and mold temperature fluctuate; ambient temperature affects bottle shrinkage.
Solution
Control preform weight deviation to ±0.1g; stabilize '2079851475616104457 parameters; test capacity in a constant-temperature environment; regularly calibrate mold dimensions.
Key Takeaway
PET bottle capacity accuracy involves dual control of preform weight and the blow '2079851475616104453.
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