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A melting model for reciprocating screw injection‐molding machines
Author(s) -
Lipshitz S. D.,
Lavie R.,
Tadmor Z.
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.760140803
Subject(s) - reciprocating motion , materials science , molding (decorative) , rotation (mathematics) , injection molding machine , extrusion , thermal conduction , composite material , transient (computer programming) , mechanical engineering , mechanics , thermodynamics , computer science , engineering , mold , physics , artificial intelligence , gas compressor , operating system
A theoretical model for melting in reciprocating screw injection molding machines is proposed. The model permits the calculation of the solid bed profile as a function of time during the injection cycle. It consists of a dynamic extrusion melting model for the rotation period, a transient heat conduction model with a phase transition for the screw rest period, and a proposed model for the drifting of the beginning of melting during the injection cycle.