Extrusion & Post
11 görüntüleme
PVA extruded film has transverse corrugations
Sorun Belirtisi
PVA extruded film surface has transverse periodic corrugations with wavelength 5-10mm
Neden Analizi
Haul-off roller vibration or unstable rotation speed produces periodic stretching changes; cooling roller eccentricity or out-of-round surface causes periodic contact pressure changes
Çözüm
1) Overhaul the haul-off roller to eliminate vibration; 2) Round the cooling roller, eccentricity <0.02mm; 3) Install a pressure stabilizing device on the extruder to eliminate pressure fluctuation; 4) Stable control of haul-off speed ±0.5%
Temel Çıkarım
Transverse corrugations are caused by haul-off vibration and roller eccentricity; equipment overhaul and stable control are the key
Bu faydalı oldu mu?
0 kişi bunu faydalı buldu
Geri bildiriminiz için teşekkürler!