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Rheological and Thermal Properties of a Model System for PIM

  • H. Persson , B. Hausnerová , L. Nyborg und M. Rigdahl
Veröffentlicht/Copyright: 6. April 2013
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International Polymer Processing
Aus der Zeitschrift International Polymer Processing Band 24 Heft 2

Abstract

Powder injection moulding (PIM) is an important and accepted industrial technique for net shaping of precision components which can have a rather complex geometry. In order to meet the imposed, often rather strict, requirements with regard to dimensional accuracy, it is important to have an adequate knowledge and control of the rheological behaviour and the related processing properties of the powder/polymer melt (feedstock). Such a knowledge is furthermore of crucial importance in numerical simulations of the PIM-process. In the present work, a model system, consisting of steel powder, poly(ethylene glycol) and wax, is used in order to illustrate how the viscometric properties as well as thermal properties, such as the conductivity and the specific heat, of the system can be related to the corresponding properties of the polymeric binder system. In a similar way, the pvT (pressure-volume-temperature)-behaviour of the model system is analysed and discussed. The pvT-behaviour, which has not been extensively reported on for PIM-feedstocks, is considered to be of significant relevance for controlling the outcome of the injection moulding process.

∗ Mail address: Henrik Persson, Chalmers University of Technology, Department of Materials and Manufacturing Technology, SE-41296 Göteborg, Sweden. E-mail:

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Received: 2008-11-04
Accepted: 2009-02-11
Published Online: 2013-04-06
Published in Print: 2009-05-01

© 2009, Carl Hanser Verlag, Munich

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Regular Contributed Articles
  4. Modeling the Temperature Development of Wall-slipping Polymers in Single-screw Channels
  5. A Novel Dilatometer for PVT Measurements of Polymers at High Cooling – and Shear Rates
  6. Analysis of Heat Transfer in PVC Profiles during the Extrusion Calibration/Cooling Step
  7. Study on the Bleeding Mechanism of Slip Agents in a Polypropylene Film using Molecular Dynamics
  8. A Direct 3D Numerical Simulation Code for Extrusion and Mixing Processes
  9. The Resarch for Asphalt Modified with Phosphorus Trichloride/SBS
  10. The Effect of Bead Vacuum on Slot Die Coating
  11. Predicting the Yield Stress of Polymer Glasses Directly from Processing Conditions: Application to Miscible Systems
  12. Numerical Simulation of a Thermoviscoelastic Frictional Problem with Application to the Hot-Embossing Process for Manufacturing of Microcomponents
  13. A Design to Study Flow Induced Crystallization in a Multipass Rheometer
  14. Modeling of Melt Conveying in a Novel Screw-Nested Extruder
  15. Rheological and Thermal Properties of a Model System for PIM
  16. PPS-News
  17. PPS News
  18. Seikei Kakou Abstracts
  19. Seikei-Kakou Abstracts
https://doi.org/10.3139/217.2243

Artikel in diesem Heft

  1. Contents
  2. Contents
  3. Regular Contributed Articles
  4. Modeling the Temperature Development of Wall-slipping Polymers in Single-screw Channels
  5. A Novel Dilatometer for PVT Measurements of Polymers at High Cooling – and Shear Rates
  6. Analysis of Heat Transfer in PVC Profiles during the Extrusion Calibration/Cooling Step
  7. Study on the Bleeding Mechanism of Slip Agents in a Polypropylene Film using Molecular Dynamics
  8. A Direct 3D Numerical Simulation Code for Extrusion and Mixing Processes
  9. The Resarch for Asphalt Modified with Phosphorus Trichloride/SBS
  10. The Effect of Bead Vacuum on Slot Die Coating
  11. Predicting the Yield Stress of Polymer Glasses Directly from Processing Conditions: Application to Miscible Systems
  12. Numerical Simulation of a Thermoviscoelastic Frictional Problem with Application to the Hot-Embossing Process for Manufacturing of Microcomponents
  13. A Design to Study Flow Induced Crystallization in a Multipass Rheometer
  14. Modeling of Melt Conveying in a Novel Screw-Nested Extruder
  15. Rheological and Thermal Properties of a Model System for PIM
  16. PPS-News
  17. PPS News
  18. Seikei Kakou Abstracts
  19. Seikei-Kakou Abstracts
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