Injection Molding
10 Aufrufe
Radial Cracks in the Gate Area of PBT Injection-Molded Parts
Problembeschreibung
Radial fine cracks appear around the gate of the product.
Ursachenanalyse
The holding pressure is too high or the holding is excessive, causing internal stress cracks in the gate area; the temperature gradient at the gate is too large, causing thermal stress.
Lösung
Reduce the holding pressure; delay gate freezing to facilitate stress relaxation; reduce the mold temperature gradient in this area.
Wichtigste Erkenntnis
PBT gate area cracks are related to excessive holding.
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!