Extrusion & Post
11 görüntüleme
CEF extrusion film winding wrinkling
Sorun Belirtisi
After the CEF extruded film is wound, transverse wrinkles and longitudinal creases appear
Neden Analizi
The film tension is uneven and fluctuates ±20%; the film thickness is uneven, causing inconsistent stretching of each section; the shrinkage rate after cooling is anisotropic
Çözüm
1) Automatic tension control system to stabilize the winding tension; 2) Improve the film thickness uniformity to ±5%; 3) Adjust the guide roller parallelism <0.05mm/m; 4) Fully cool the film to <30°C before winding
Temel Çıkarım
Film wrinkling is caused by tension fluctuations and uneven thickness; automatic tension control and homogenization are the key
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