Extrusion & Post
3 Aufrufe
Flow marks on PETG extruded sheet
Problembeschreibung
Flow line marks along the extrusion direction appear on the sheet surface.
Ursachenanalyse
The melt flow in the die head is uneven, the die head flow channel design has dead corners, and the extrusion temperature is uneven.
Lösung
Optimize the die head flow channel design; balance the heating; increase the processing temperature to reduce the viscosity.
Wichtigste Erkenntnis
PETG sheet flow marks point to die head flow channel design problems.
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!