A theoretical melting model for a reciprocating‐screw injection molding machine | Zendy

Donovan R. C. | Zendy

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A theoretical melting model for a reciprocating‐screw injection molding machine

Author(s) -

Donovan R. C.

Publication year - 1971

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.760110503

Subject(s) - materials science , reciprocating motion , polyvinyl chloride , injection molding machine , extrusion , molding (decorative) , composite material , low density polyethylene , acrylonitrile butadiene styrene , polymer , transient (computer programming) , mechanical engineering , computer science , mold , engineering , gas compressor , operating system

A theoretical model for the transient melting behavior in a reciprocating‐screw injection molding machine is proposed. The model is based on a steady state extrusion model, Neumann's melting problem, and a heuristic postulate for the transient behavior. The model predictions are compared to experimental melting data for low density polyethylene, acrylonitrile‐butadiene‐styrene polymers and polyvinyl chloride for a variety of operating conditions and two screw designs. A useful degree of correlation is demonstrated for all experimental cases.

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