Material Analysis
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Uneven thickness of PCTG extruded sheet
Problem Phenomenon
Large transverse thickness fluctuation of extruded sheet.
Cause Analysis
Uneven die lip gap, uneven melt temperature causing viscosity differences, three rolls not parallel.
Solution
Precisely adjust the die lip; optimize extrusion temperature control; calibrate three-roll gap.
Key Takeaway
PCTG sheet thickness uniformity is the foundation of post-processing.
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