Molding Process
3 Aufrufe
Sink marks of PAR optical lenses
Problembeschreibung
The center of thick-walled optical lenses shrinks severely.
Ursachenanalyse
The center of the thick wall cools slowly, and the holding pressure shrinkage compensation is insufficient, producing a central sink.
Lösung
Extend the holding pressure; strengthen cooling in the central area; use staged holding pressure.
Wichtigste Erkenntnis
PAR lens shrinkage is a source of optical distortion.
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!