Extrusion & Post
14 visualizações
PP Film MD Thickness Deviation
Fenómeno do problema
Periodic thickness fluctuation in the MD direction of CPP/IPP film.
Análise das causas
Extrusion output fluctuation (screw wear, unstable feeding) or haul-off speed fluctuation; thickness feedback lag.
Solução
①Check feeding stability and screw wear; ②stabilize haul-off; ③closed-loop thickness adjustment; ④optimize die bolts.
Conclusão principal
For MD thickness variation, first stabilize extrusion output and haul-off.
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!