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