Extrusion & Post
13 visualizações
DSTDP extruded film transverse ripples
Fenómeno do problema
DSTDP extruded film surface has transverse periodic ripples, wavelength 5-10mm
Análise das causas
Haul-off roller vibration or unstable speed producing periodic stretching changes; cooling roller eccentricity or out-of-round surface causing periodic contact pressure changes
Solução
1) Overhaul haul-off roller to eliminate vibration; 2) true the cooling roller, eccentricity <0.02mm; 3) install pressure stabilizing device on extruder to eliminate pressure fluctuation; 4) stable control of haul-off speed ±0.5%
Conclusão principal
Transverse ripples are caused by haul-off vibration and roller eccentricity; equipment overhaul and stable control are key
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!