Extrusion & Post
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MP extrusion unstable feeding
Problembeschreibung
MP extrusion feeding amount fluctuates ±15%, causing unstable extrusion pressure and product dimensions
Ursachenanalyse
MP pellet shape irregular causing unstable feed screw fill rate; bridging or voids in the hopper; feed screw design unsuitable
Lösung
1) use a loss-in-weight feeder to precisely control feeding amount; 2) install a vibrator on the hopper to prevent bridging; 3) pelletize MP to 2-3mm uniform particle size; 4) change the feed screw to a special design
Wichtigste Erkenntnis
unstable feeding is caused by pellet characteristics; loss-in-weight feeding and anti-bridging are the core
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