LLDPE '2079851475616104452 sink marks

Problembeschreibung

Thick-wall depressions.

Ursachenanalyse

Large shrinkage + insufficient compensation feeding.

Lösung

①Increase holding pressure; ②reduce material in thick walls; ③large gate; ④extend holding pressure.

Wichtigste Erkenntnis

Sink mark = compensation feeding.

LLDPE; '2079851475616104452; sink mark; holding pressure; thick wall

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