Molds & Tooling
8 visualizaciones
Poor PVA surface gloss
Fenómeno del problema
PVA product surface gloss <60%, below the 80% requirement, dull appearance
Análisis de la causa
Mold surface rough Ra>0.4μm; high PVA crystallinity, surface microcrystals scatter light; improper cooling rate
Solución
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
Conclusión clave
Poor gloss is caused by mold roughness and crystallization scattering; polishing the mold and controlling crystallization are the key
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!