Extrusion & Post
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PETG extrusion material die drool
Problembeschreibung
During PETG extrusion, material accumulates at the die exit gradually forming die drool, affecting the product surface.
Ursachenanalyse
Die temperature high causing material adhesion, small-molecule substances or additives migrate to the die surface, die surface rough.
Lösung
Appropriately lower the die temperature; regularly clean the die; improve die finish (chrome plating, polishing); use die coating.
Wichtigste Erkenntnis
PETG die drool is a common problem in long-term operation.
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