Molds & Tooling
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PET Preform Stringing
Problembeschreibung
Gate stringing during demolding.
Ursachenanalyse
Gate temperature high or insufficient cooling; improper valve pin timing.
Lösung
①Optimize hot runner gate temperature control; ②strengthen gate cooling; ③calibrate valve pin timing; ④appropriately lower the melt temperature.
Wichtigste Erkenntnis
Stringing = gate temperature and timing.
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