Extrusion & Post
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Rough surface of PCTG extruded pipes
Problem Phenomenon
Pipe surface is not smooth, showing orange peel or ripples.
Cause Analysis
Extrusion speed too high causing melt fracture, die temperature too low, haul-off speed mismatch.
Solution
Reduce extrusion speed or increase die temperature; match haul-off speed; polish the die.
Key Takeaway
PCTG pipe surface roughness is related to process parameter matching.
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