Processing Machinery
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MP internal unmelted particles
Fenómeno del problema
MP products have unmelted transparent or translucent particles inside
Análisis de la causa
screw plasticization capacity insufficient, temperature low; feeding amount too large, exceeding the plasticization capacity; MP melting temperature high
Solución
1) raise processing temperature to ensure full melting; 2) reduce feeding amount to match plasticization capacity; 3) increase screw mixing section
Conclusión clave
unmelted particles are caused by insufficient plasticization; raising temperature and reducing feeding are key
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