Material Drying
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PETG smoking during extrusion molding
Problembeschreibung
Smoke and odor appear at the PETG extruder die head or vent port.
Ursachenanalyse
2079851475616104451 insufficient and moisture vaporizes, processing temperature high and low-molecular substances volatilize or degrade, residual monomers or solvents in the raw material.
Lösung
Fully dry to moisture <0.01%; lower the processing temperature to 230-250°C; check raw material quality; strengthen ventilation and exhaust.
Wichtigste Erkenntnis
PETG extrusion smoking is usually related to moisture and temperature.
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