Extrusion & Post
12 مشاهدة
Glass Fibre extruded film longitudinal streaks
ظاهرة المشكلة
Glass Fibre extruded film surface has continuous streaks along extrusion direction, width 1-3mm
تحليل الأسباب
Die lip locally damaged or gap uneven; melt stagnation zone in die produces unstable flow; pressure fluctuation at screw front end
الحل
1) Check die lip flatness and gap uniformity ±0.01mm; 2) clean die interior to remove stagnation zone carbide; 3) install gear pump on extruder to stabilize melt pressure; 4) polish die lip to Ra<0.1μm
الخلاصة الأساسية
Longitudinal streaks are caused by die defects and pressure fluctuation; die maintenance and pressure stabilization are key
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!