PET Preform Injection Mold Sticking

Fenómeno do problema

The preform sticks to the cavity and is scratched.

Análise das causas

High holding pressure, small draft angle, insufficient cooling; PET has high rigidity and large demolding force.

Solução

①Reduce holding pressure; ②extend cooling; ③polish; ④check ejection.

Conclusão principal

Mold sticking = holding pressure and cooling.

PET; preform; mold sticking; holding pressure; cooling

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