Molding Process
4 Aufrufe
Rough surface of cable insulation layer
Problembeschreibung
Sharkskin defects appear on the extruded insulation layer
Ursachenanalyse
The processing temperature is too low, melt fracture, and the die is not smooth
Lösung
Raise the temperature to 250-260C, polish the die, and reduce the line speed
Wichtigste Erkenntnis
The temperature and shear rate need to be precisely controlled
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