Extrusion & Post
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PCL calendering processing
Problem Phenomenon
PCL calendered sheet thickness and surface quality, process parameters are sensitive.
Cause Analysis
PCL calendering temperature; roller gap; speed matching; thickness uniformity; surface state.；During on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solution
①Temperature optimization; ②Roller accuracy; ③Speed matching; ④Thickness inspection; ⑤Surface management.；After adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Key Takeaway
Rollers and temperature in PCL calendering are the quality foundation; inspection ensures uniformity; surface management ensures appearance.；After confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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