Injection Molding
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Insufficient Filling in PC '2079851475616104452
Problembeschreibung
The cavity of large PC products is not completely filled.
Ursachenanalyse
The melt viscosity of PC is high and sensitive to temperature; the injection pressure is insufficient; the gate and runner resistance is large; the mold temperature is low.
Lösung
Increase the melt temperature to 290-310°C; increase the injection pressure; enlarge the gate and runner; mold temperature 90-120°C.
Wichtigste Erkenntnis
The high viscosity of PC is the main cause of short shot due to poor fluidity.
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