Molds & Tooling
3 Aufrufe
PP Jetting Mark
Problembeschreibung
When the gate faces an open cavity, snake-like marks appear on the part surface.
Ursachenanalyse
Melt jetted at high speed from the gate folds and piles up without hitting a wall; excessive initial speed and small gate are the main causes.
Lösung
①Change gate direction so the flow hits a wall; ②start slow then speed up; ③enlarge the gate.
Wichtigste Erkenntnis
Hit the wall first then spread—jetting marks come no more.
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!