Injection Molding
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Insufficient Filling in PC '2079851475616104452
Fenómeno do problema
The cavity of large PC products is not completely filled.
Análise das causas
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.
Solução
Increase the melt temperature to 290-310°C; increase the injection pressure; enlarge the gate and runner; mold temperature 90-120°C.
Conclusão principal
The high viscosity of PC is the main cause of short shot due to poor fluidity.
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