Molding Process
3 Aufrufe
PET Bottle Neck Crystallization (White Neck)
Problembeschreibung
White ring band below the bottle neck.
Ursachenanalyse
The neck area is heated (lamp too close to the neck or insufficient protection) causing crystallization; affecting sealing and strength.
Lösung
①Check neck shading/cooling protection; ②adjust the distance and power of the top lamp zone; ③check preform neck cooling.
Wichtigste Erkenntnis
White neck = heat protection failure.
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!