Injection Molding
7 مشاهدة
Insufficient flow length ratio in EVA '2079851475616104452
ظاهرة المشكلة
EVA '2079851475616104452 flow length ratio only 80-100, below 150; thin wall products cannot be filled
تحليل الأسباب
EVA melt viscosity high with short flow distance; injection temperature too low; injection pressure insufficient; mold runner resistance large
الحل
1) Increase injection temperature to 140-200°C; 2) Increase injection pressure to 80-100MPa; 3) Enlarge runner and gate size to reduce resistance; 4) Add 0.3-0.5wt% flow aid to reduce viscosity
الخلاصة الأساسية
Insufficient flow length ratio is caused by EVA high viscosity; high temperature, high pressure and large gate are key
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!