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Predicting the effect of screw wear on the performance of plasticating extruders
Author(s) -
Klein Imrich
Publication year - 1975
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760150608
Subject(s) - materials science , die swell , extrusion , plastics extrusion , polypropylene , composite material , high density polyethylene , polyethylene , power consumption , low density polyethylene , power (physics) , thermodynamics , physics
The effect of screw wear on the performance of a 2.5 in. diameter extruder is studied with the aid of computer simulations. The effect of progressively increasing flight clearance on the extrusion of low density polyethylene, polypropylene and nylon 6/6 is presented. The remedial effect of increased screw speed and its side effects on melting behavior, solids content, extrudate temperature and power consumption are also described.