Material Drying
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Bubbles from insufficient drying in PCTG extrusion
Problem Phenomenon
Bubbles appear inside extruded sheets or profiles.
Cause Analysis
Insufficient raw '2079851475616104451; moisture vaporizes forming bubbles.
Solution
Strengthen drying to moisture <0.03%; fully vent at the extruder venting section.
Key Takeaway
PCTG extrusion bubbles originate from moisture.
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