Processing Machinery
5 مشاهدة
PA6 Nozzle Temperature Control
ظاهرة المشكلة
During production, the nozzle frequently drools; after lowering the nozzle temperature, cold material blockage occurs again
تحليل الأسباب
When the nozzle temperature is higher than the melt temperature, the melt viscosity is low and drooling occurs; when too low, the material at the nozzle outlet solidifies forming cold material; both situations are improper matching of nozzle temperature and melt temperature
الحل
Set the nozzle temperature consistent with the melt temperature or slightly lower by 5-10°C, combined with an anti-drool nozzle or screw decompression suck-back; drooling and blockage cannot be solved by temperature adjustment alone, and structural anti-drooling is more reliable
الخلاصة الأساسية
Nozzle temperature must be set in coordination with the melt temperature, and only combined with suck-back can both drooling and blockage be addressed; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!