Injection Molding
2 Aufrufe
DSTDP injection gate freezing too early
Problembeschreibung
DSTDP injection molded product gate freezes within 0.5-1s during the holding stage, holding pressure cannot be transmitted, product sinks severely
Ursachenanalyse
Gate size too small, diameter <1mm causing fast freezing; injection temperature on the low side; mold temperature on the low side accelerating gate cooling
Lösung
1) Increase gate diameter to 1.5-2mm; 2) raise injection temperature to 160-200°C; 3) raise mold temperature to 40-50°C to delay gate freezing; 4) holding pressure stepwise decay rather than sudden release
Wichtigste Erkenntnis
Premature gate freezing is caused by small gate and low temperature; enlarging the gate and raising temperature are the fundamental measures
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!