Processing Machinery
5 görüntüleme
MP difficult purging
Sorun Belirtisi
MP purging requires 2-3h, time-consuming, affecting changeover efficiency
Neden Analizi
MP strong adhesion forms a firm adhesive layer on the screw and barrel; MP poor thermal stability, becomes sticky at high temperature, harder to remove
Çözüm
1) flush with high-viscosity PE before purging to carry away MP residue; 2) lower purging temperature below the MP softening point to reduce adhesion; 3) use a special purging compound
Temel Çıkarım
difficult purging is caused by MP strong adhesion; PE flushing and lowering temperature are key
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