Molds & Tooling
3 Aufrufe
Poor PVA surface gloss
Problembeschreibung
PVA product surface gloss <60%, below the 80% requirement, dull appearance
Ursachenanalyse
Mold surface rough Ra>0.4μm; high PVA crystallinity, surface microcrystals scatter light; improper cooling rate
Lösung
1) Polish mold to Ra<0.1μm mirror finish; 2) Raise mold temperature to delay crystallization and reduce scattering; 3) Add nucleating agent to control crystal size
Wichtigste Erkenntnis
Poor gloss is caused by mold roughness and crystallization scattering; polishing the mold and controlling crystallization are the key
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!