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Monitoring of the injection and holding phases by using a modular injection mold

  • Dariusz Sykutera , Piotr Czyżewski , Artur Kościuszko , Piotr Szewczykowski EMAIL logo , Łukasz Wajer and Marek Bieliński
Published/Copyright: March 11, 2017
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Journal of Polymer Engineering
From the journal Journal of Polymer Engineering Volume 38 Issue 1

Abstract

Introducing pressure and temperature sensors into the mold cavity allows us to determine the rheological properties of the polymeric materials being processed. Furthermore, signals registered by sensors inside the mold cavity allow us to monitor the injection and holding phases as well as the subsequent solidification of the polymer melt. The aim of this research work was to verify the operational abilities of a laboratory injection mold with pressure and temperature sensors and was designed for research purposes. Standardized test pieces to investigate the mechanical properties of polymeric materials were obtained by using a laboratory injection mold. This article presents the investigation results of the influence of microcellular foaming of polyamide on the conditions inside an injection mold cavity. Apparent viscosity fluctuations of polymer melt in subsequent processing cycles were investigated as well. Additionally, the effect of changes in the injection speed of the polypropylene melt on its rheological parameters were investigated.

Keywords: injection molding technology; injection speed; microcellular foam apparent viscosity measurements; modular injection mold; pressure and temperature sensors

  1. Conflict of interest statement: All authors have declared no conflicts of interest regarding the publication of this article.

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Received: 2016-9-9
Accepted: 2017-1-26
Published Online: 2017-3-11
Published in Print: 2018-1-26

©2018 Walter de Gruyter GmbH, Berlin/Boston

Articles in the same Issue

  1. Frontmatter
  2. Original articles
  3. Antistatic surface properties of plastics using donor-accepter molecular compounding antistatic agent
  4. Rheological properties and crystallization behaviors of long chain branched polyethylene prepared by melt branching reaction
  5. An investigation into the structure and morphology of polyamide 6/polyaniline hybrid fibers
  6. Natural rubber/tetra-needle-like zinc oxide whisker composites: their preparation and characterization
  7. Fabrication of short glass fiber reinforced phenol-formaldehyde-lignin and polyurethane-based composite foam: mechanical, friability, and shape memory studies
  8. Effect of the particle diameter of the chemical foaming agent on the foaming process and the cellular structure of one-shot compression molded polyethylene foams
  9. Recycling waste tire rubber by water jet pulverization: powder characteristics and reinforcing performance in natural rubber composites
  10. Monitoring of the injection and holding phases by using a modular injection mold
  11. Influence of mold temperature and process time on the degree of cure of epoxy-based materials for thermoset injection molding and prepreg compression molding
  12. Calendering of non-isothermal Rabinowitsch fluid
  13. Simulation of dynamic gas penetrations on fingering behaviors during gas-assisted injection molding
https://doi.org/10.1515/polyeng-2016-0321
Keywords for this article
injection molding technology; injection speed; microcellular foam apparent viscosity measurements; modular injection mold; pressure and temperature sensors

Articles in the same Issue

  1. Frontmatter
  2. Original articles
  3. Antistatic surface properties of plastics using donor-accepter molecular compounding antistatic agent
  4. Rheological properties and crystallization behaviors of long chain branched polyethylene prepared by melt branching reaction
  5. An investigation into the structure and morphology of polyamide 6/polyaniline hybrid fibers
  6. Natural rubber/tetra-needle-like zinc oxide whisker composites: their preparation and characterization
  7. Fabrication of short glass fiber reinforced phenol-formaldehyde-lignin and polyurethane-based composite foam: mechanical, friability, and shape memory studies
  8. Effect of the particle diameter of the chemical foaming agent on the foaming process and the cellular structure of one-shot compression molded polyethylene foams
  9. Recycling waste tire rubber by water jet pulverization: powder characteristics and reinforcing performance in natural rubber composites
  10. Monitoring of the injection and holding phases by using a modular injection mold
  11. Influence of mold temperature and process time on the degree of cure of epoxy-based materials for thermoset injection molding and prepreg compression molding
  12. Calendering of non-isothermal Rabinowitsch fluid
  13. Simulation of dynamic gas penetrations on fingering behaviors during gas-assisted injection molding
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