Injection Molding
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Screw seizure and non-rotation during PLA '2079851475616104452
Problembeschreibung
PLA hardens or crystallizes and locks the screw so that it cannot rotate.
Ursachenanalyse
When the machine is stopped, the PLA in the machine cools, crystallizes, and solidifies, locking the screw.
Lösung
Clean and replace the PLA with polyolefin before stopping; heat in place before restarting.
Wichtigste Erkenntnis
PLA cooling crystallization screw seizure is a major accident.
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