Extrusion & Post
12 مشاهدة
Frequent Screen Clogging in CMC Extrusion
ظاهرة المشكلة
In CMC extrusion, the screen needs to be replaced every 2-3h; clogging causes sudden pressure rise and output decrease
تحليل الأسباب
Many gel particles and impurities in the raw material; screen mesh too high, intercepting a large number of particles; filler or color masterbatch agglomerates clogging the screen
الحل
1)Select raw materials with low gel content; 2)Adopt stepped screens 40/80/120 mesh; 3)Add filler and color masterbatch by masterbatch method to reduce agglomeration; 4)Install automatic screen changer to reduce downtime
الخلاصة الأساسية
Screen clogging is caused by impurities and improper configuration; raw material control and stepped screens are the key
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