Processing Machinery
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POE internal unmelted particles
Problem Phenomenon
POE product interior shows unmelted transparent or semi-transparent particles
Cause Analysis
Screw plasticizing capacity insufficient, temperature low; feeding amount too large, exceeding plasticizing capacity; POE melting temperature high
Solution
1) Raise processing temperature to ensure full melting; 2) Reduce feeding amount to match plasticizing capacity; 3) Increase screw mixing section
Key Takeaway
Unmelted particles are caused by insufficient plasticization; raising temperature and reducing feeding are key
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