Extrusion & Post
1 views
HDPE blown film thickness deviation
Problem Phenomenon
The transverse thickness deviation of HDPE film is large, and the strength is uneven after bag making.
Cause Analysis
Uneven die lip gap, asymmetric air ring cooling, poor bubble centering.
Solution
①Adjust the die lip bolts; ②calibrate the air ring air volume distribution; ③adjust bubble centering; ④closed-loop thickness measurement.
Key Takeaway
Transverse thickness goes back to the die lip and air ring.
Was this helpful?
0 people found this helpful
Thank you for your feedback!