Extrusion & Post
12 مشاهدة
EMA screw slippage
ظاهرة المشكلة
Screw slippage during EMA extrusion with feed not advancing and output dropping sharply
تحليل الأسباب
EMA pellets melt too early in the feed section forming a lubricating film causing screw slippage; feed section temperature too high
الحل
1) Lower feed section temperature by 10-15°C to delay melting; 2) Deepen feed section flights to increase gripping force; 3) Dry pellet surface to reduce lubrication
الخلاصة الأساسية
Screw slippage is caused by premature melting; lowering feed section temperature is key
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