Extrusion & Post
9 مشاهدة
EEA extruded film winding wrinkles
ظاهرة المشكلة
EEA extruded film shows transverse wrinkles and longitudinal creases after winding
تحليل الأسباب
Film tension uneven, fluctuating ±20%; film thickness uneven causing inconsistent stretching of each section; after cooling, shrinkage rate differs in all directions
الحل
1) Automatic tension control system to stabilize winding tension; 2) Improve film thickness uniformity to ±5%; 3) Adjust guide roller parallelism <0.05mm/m; 4) Wind after the film is fully cooled to <30°C
الخلاصة الأساسية
Film wrinkling is caused by tension fluctuation and thickness unevenness; automatic tension control and homogenization are the key
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!