Injection Molding
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Excessively Long Screw Cleaning Cycle of PBT '2079851475616104452
Fenómeno del problema
The screw cleaning between different batches and colors takes too long (>2h).
Análisis de la causa
The residual PBT in the screw is difficult to remove quickly, especially at dead corners and the non-return ring.
Solución
Use high-efficiency purging material (abrasive-containing purging material); establish a standardized cleaning procedure; use a spare screw and barrel.
Conclusión clave
PBT screw cleaning efficiency affects production flexibility and cost.
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