Extrusion & Post
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COC Extrusion Process
Problem Phenomenon
COC extruded films and sheets, melt stability and thickness.
Cause Analysis
COC extrusion processing; films and sheets; melt stability; temperature control; thickness uniformity; cooling management; surface quality.; During on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience
Solution
①Melt stability; ②temperature control; ③thickness uniformity; ④cooling optimization; ⑤surface management.; After adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
The stability and uniformity of COC extrusion are the quality basis; equal emphasis on temperature and cooling; management ensures consistency.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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