Extrusion & Post
11 görüntüleme
Unstable Dimensions in PU Extrusion
Sorun Belirtisi
PU extruded product cross-section dimensions fluctuate ±10%, with periodic changes in the length direction
Neden Analizi
Feeding amount unstable, feeding screw speed fluctuating; extrusion temperature periodically fluctuating ±5°C; haul-off speed mismatched with extrusion speed
Çözüm
1) Use loss-in-weight feeder to ensure stable feeding; 2) PID control of each extruder zone temperature with precision ±1°C; 3) Closed-loop control of haul-off speed linked with extrusion speed; 4) Control processing temperature at 60-120±5°C
Temel Çıkarım
Extrusion dimensional stability depends on feeding precision, temperature control and haul-off synchronization
Bu faydalı oldu mu?
0 kişi bunu faydalı buldu
Geri bildiriminiz için teşekkürler!