Extrusion & Post
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MP screw slipping
Fenómeno del problema
during MP extrusion the screw slips, feed does not advance, output drops sharply
Análisis de la causa
MP pellets melt too early in the feed section, forming a lubricating film causing screw slip; feed section temperature too high
Solución
1) lower feed section temperature 10-15°C to delay melting; 2) deepen the feed section flight to increase material grip; 3) dry the pellet surface to reduce lubrication
Conclusión clave
screw slipping is caused by premature melting; lowering feed section temperature is key
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