Extrusion & Post
12 مشاهدة
EAA vacuum section overflow
ظاهرة المشكلة
Material overflow at the vacuum section of EAA extrusion, vent hole blocked
تحليل الأسباب
EAA melt viscosity low and overflowing at the vacuum section; vacuum section temperature too high making viscosity even lower and aggravating overflow; improper vent hole design
الحل
1) Reduce vacuum section temperature by 5-10°C to increase viscosity; 2) Add a baffle above the vent hole to prevent overflow; 3) Increase screw speed to accelerate conveying and reduce residence time
الخلاصة الأساسية
Overflow is caused by low melt viscosity; lowering temperature and adding a baffle is key
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!