Injection Molding
10 Aufrufe
Uneven crystallization white haze of PET injection products
Problembeschreibung
White opaque areas appear locally on PET products, in obvious contrast with transparent areas.
Ursachenanalyse
Improper mold temperature control; local overcooling causes rapid PET crystallization forming spherulites; when mold temperature below 120°C, crystallization incomplete.
Lösung
Increase mold temperature to 130-150°C, use a mold temperature controller for precise temperature control, optimize cooling water channels for uniform mold surface temperature.
Wichtigste Erkenntnis
PET crystallization behavior is very sensitive to mold temperature; uniform mold temperature is key.
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!