Processing Machinery
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PEEK L/D Ratio Screw Adaptation
Problem Phenomenon
【Problem Phenomenon】Large thin-walled complex PEEK parts have uneven plasticizing and difficult filling, and general-purpose screws are inadequate
Cause Analysis
Large thin-walled complex parts require a high L/D ratio screw with a short compression section to provide sufficient plasticizing capacity and stable conveying; standard screws have insufficient plasticizing reserve in high-viscosity PEEK thin-wall flow paths
Solution
Select a high L/D short-compression screw for large thin-walled complex parts; for filled grades, the screw also takes wear resistance into account; when plasticizing is insufficient, first check the screw configuration adaptability; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Key Takeaway
For complex PEEK parts, first check the screw L/D and compression section; if the configuration is wrong, machine adjustment is futile; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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