Effect of magnetic field on the fiber orientation during the filling process in injection molding, part 1: Simulation and mold design

Chen Yuan Chung, Shia Chung Chen, Kuan Ju Lin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Conductive polymer composite material is increasingly applied in a variety of fields, and its related processing technology has been a focus of research and development. Regarding magnetic fiber, because the orientation and distribution of the fiber affect the electrical and mechanical properties of products, the control of fiber orientation and distribution has been regarded as a key technology. This study used magnetic-assisted injection molding to control the orientation of magnetic fibers during the melt-polymer filling process. A special mold containing a magnetic apparatus was simulated and designed. Its material and thickness of various spacing blocks as well as the optimal layout of magnets in the mold were determined. An actual mold with the same magnet layout was then manufactured accordingly, and the measured magnetic flux density was compared with simulated results. This study also examined the coupled effect of magnetic and flow fields on the orientation of nickel-coated carbon fibers, calculating the magnetic moment produced due to the influence of the magnetic field on the fibers when melt polymer flowed through various positions in the cavity during the filling process. The flow trajectories of the fibers, which were affected by the magnetic field, were also predicted.

Original languageEnglish
Title of host publicationMaterials Engineering and Nanotechnology
EditorsKazuo Umemura
PublisherTrans Tech Publications Ltd
Pages126-135
Number of pages10
ISBN (Print)9783035713787
DOIs
StatePublished - 2018
Event3rd International Conference on Materials Engineering and Nanotechnology, ICMEN 2018 - Tokyo, Japan
Duration: 19 Jul 201821 Jul 2018

Publication series

NameMaterials Science Forum
Volume936 MSF
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference3rd International Conference on Materials Engineering and Nanotechnology, ICMEN 2018
Country/TerritoryJapan
CityTokyo
Period19/07/1821/07/18

Keywords

  • Conductive polymer composite material
  • Magnetic-assisted injection molding
  • Multiphysics

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