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Journal of Materials Science

, Volume 26, Issue 8, pp 2143–2149 | Cite as

Computer modelling of the origin of defects in ceramic injection moulding

Part III Sprue closure
  • K. N. Hunt
  • J. R. G. Evans
  • J. Woodthorpe
Papers

Abstract

A finite difference method for the calculation of sprue closure time is described and compared with measured cavity pressure fall for a zirconia-polystyrene suspension. The disparity between measured and calculated values is explained by the balance of volume shrinkage rate in the cavity and flow rate in the sprue during the final stage of mould packing and cooling.

Keywords

Polymer Shrinkage Computer Modelling Finite Difference Final Stage 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd. 1991

Authors and Affiliations

  • K. N. Hunt
    • 1
  • J. R. G. Evans
    • 1
  • J. Woodthorpe
    • 2
  1. 1.Department of Materials TechnologyBrunel UniversityUxbridgeUK
  2. 2.T & N TechnologyCawstonUK

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