Extrusion & Post
1 views
LDPE Film Thickness Deviation (MD)
Problem Phenomenon
Longitudinal thickness fluctuates periodically, and the thickness measurement curve undulates.
Cause Analysis
Extrusion output pulsation (unstable feeding, screw wear) or haul-off speed fluctuation.
Solution
①Stabilize feeding; ②measure screw clearance; ③stabilize haul-off; ④closed-loop thickness control.
Key Takeaway
MD fluctuation is traced to extrusion and haul-off.
Was this helpful?
0 people found this helpful
Thank you for your feedback!