Processing Machinery
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PTFE Filling Mixing Unevenness
Problem Phenomenon
During PTFE filling modification, glass fiber, graphite, etc. are unevenly mixed, product performance varies by region, and local filler-free areas fail.
Cause Analysis
Mixing uniformity challenge within the 15%~40% filling range; density differences between powder and filler; mixing equipment and time; stratification phenomenon.; When troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based only on experience
Solution
①Accurately meter filler according to proportion; ②Optimize mixing equipment and time; ③Sample-check mixing uniformity; ④Prevent stratification during transportation.; After adjustment, continuously sample to verify the effect, confirm stability before resuming mass production
Key Takeaway
Mixing uniformity of PTFE filling modification determines performance consistency; density difference is a physical challenge; sampling inspection is quality assurance.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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