Processing Machinery
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PTFE Inaccurate Loading Amount
Problem Phenomenon
PTFE compression molded products have density and dimension deviations, loading amount control is inaccurate, and volumetric and weighing methods have large errors.
Cause Analysis
Loading uses volumetric or weighing methods to control the feed amount, with error required to be less than ±1%; powder flowability affects volumetric accuracy; weighing equipment calibration; operator skill differences.
Solution
①Control loading error within ±1%; ②Weighing method takes priority over volumetric method; ③Regularly calibrate weighing equipment; ④Standardize loading operation training.; After adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Key Takeaway
PTFE loading accuracy of ±1% is the premise of density uniformity; the weighing method is more reliable; operation specifications reduce human differences.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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