Studies on the solid conveying process in micro injection molding machine

Yan Xu, Kai Leung Yung, Hai Pang Ng

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Understanding the solid conveying process is important for the optimal design of micro injection molding machines. To solve problems such as starve feeding and process instability during plastication of polymers, which deteriorate product qualities, studies have been carried out on the conveying process of discrete polymer pellets. The effect of screw axis inclination on the speed of solid conveying is investigated with both simulation and experimental approaches. A discrete element modeling method (DEM) specially designed for simulating polymer particle movements in screw channels, which takes into account the effect of gravity while maintaining the simplicity of calculations, has been developed. The agreements between results of simulations and experiments verify the integrity of the models developed herein. The proposed modeling method is capable of optimizing the design of plasticizers of micro injection molding machines.
Original languageEnglish
Title of host publicationAdvances in Materials Manufacturing Science and Technology II - Selected Papers from the 12th International Manufacturing Conference in China
Number of pages4
Publication statusPublished - 1 Dec 2006
Event12th International Manufacturing Conference in China, IMCC2006 - Xi'an, China
Duration: 21 Sep 200623 Sep 2006

Publication series

NameMaterials Science Forum
ISSN (Print)0255-5476


Conference12th International Manufacturing Conference in China, IMCC2006


  • Discrete element modeling
  • Micro injection molding
  • Solid conveying

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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