Extrusion & Post
13 مشاهدة
PVC Extrusion Output Decline
ظاهرة المشكلة
Output gradually decreases, plasticization worsens.
تحليل الأسباب
Screw and barrel wear (PVC fillers are highly abrasive), screen pack blockage; PVC contains many fillers, wears faster; during on-site troubleshooting, verify item by item according to this mechanism, avoid blindly adjusting the machine based solely on experience.
الحل
①Measure screw—barrel clearance, replace if exceeding standard; ②Use wear-resistant material screw and barrel; ③Replace screen pack and monitor pressure differential; ④Stabilize feeding (forced feeding/stirring to prevent bridging); ⑤Establish regular screw and mold wear monitoring system.
الخلاصة الأساسية
PVC output decline = 'wear + screen blockage': PVC fillers are highly abrasive, screw life is short; wear-resistant materials and regular clearance measurement are the hardware basis for maintaining output; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.
هل كان هذا مفيدًا؟
0 شخص وجدوا هذا مفيدًا
شكرًا لك على ملاحظاتك!