Processing Machinery
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PVDF Extruded Pipe Surface
Problem Phenomenon
Surface defects on extruded pipe.
Cause Analysis
Improper die temperature or material buildup; PVDF melt characteristics make the surface sensitive to temperature.; During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
①Optimize the die temperature; ②clean the die buildup; ③stabilize extrusion; ④check the die condition.; After adjustment, take consecutive samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
The extrusion surface is managed by die temperature and cleanliness.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; Include this case in the defect archive as a reference for troubleshooting similar problems in the future
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