Injection Molding
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Screw seizure and non-rotation during PLA '2079851475616104452
Fenómeno del problema
PLA hardens or crystallizes and locks the screw so that it cannot rotate.
Análisis de la causa
When the machine is stopped, the PLA in the machine cools, crystallizes, and solidifies, locking the screw.
Solución
Clean and replace the PLA with polyolefin before stopping; heat in place before restarting.
Conclusión clave
PLA cooling crystallization screw seizure is a major accident.
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