Injection Molding
6 Aufrufe
Frequent nozzle clogging during injection
Problembeschreibung
During injection, the nozzle discharges poorly or even becomes completely clogged
Ursachenanalyse
Glass fibers aggregate and bridge at the nozzle opening; the nozzle orifice is too small to pass melt containing long fibers; the nozzle temperature is insufficient causing excessive melt viscosity
Lösung
Increase the nozzle orifice to ≥5mm; increase the nozzle zone temperature to reduce melt viscosity; use a short nozzle design to reduce the runner length where fibers aggregate
Wichtigste Erkenntnis
Long fiber materials have special requirements for nozzle size and structure
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!