The process of cavity filling including the fountain flow in injection molding

Costas G. Gogos, Chieh‐Fong ‐F Huang, Larry R. Schmidt

Research output: Contribution to journalArticlepeer-review

57 Scopus citations

Abstract

This work deals with the simulation of the filling of a cavity utilizing the Marker‐and‐Cell numerical technique in solving the transient problem involved. The cavity is confined by two parallel plates, and is “end fed.” The flow was assumed isothermal and the fluid incompressible, obeying the power law model. Special attention was given to the flow region near the advancing melt front, in order to obtain a better insight of the “fountain effect,” during which the fluid flows from the center to the walls of the cavity. The results of the simulation of the front flow region are supported by and in qualitative agreement with experimental results involving “tracer resins” during cavity filling. Although the flows considered were slow and isothermal, this study has significant practical ramifications on industrial mold filling during injection molding.

Original languageEnglish (US)
Pages (from-to)1457-1466
Number of pages10
JournalPolymer Engineering & Science
Volume26
Issue number20
DOIs
StatePublished - Nov 1986
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Polymers and Plastics
  • Materials Chemistry

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