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Dynamic model of a plasticating extruder
Author(s) -
Tadmor Z.,
Lipshitz S. D.,
Lavie R.
Publication year - 1974
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.760140206
Subject(s) - plastics extrusion , transient (computer programming) , materials science , control theory (sociology) , flow (mathematics) , mechanics , computer science , control (management) , composite material , physics , artificial intelligence , operating system
Abstract A theoretical model for the simulation of dynamic operation of a plasticating extruder is proposed. The model can be recommended as a tool to study various dynamic situations of interest in the operation of an extruder. Several responses to changes in operating conditions are discussed. They indicate the occurrence of transient maximas and occasional oscillations. The controlling of flow rate by adjusting a valve at the die seems to cause temporary local high peaks in pressure, whereas its control through screw speed seems to be satisfactory.