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Solids Conveying and Melting in a Starve Fed Self-wiping Co-rotating Twin Screw Extruder

  • S. Bawiskar and J. L. White
Published/Copyright: May 28, 2013
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International Polymer Processing
From the journal International Polymer Processing Volume 10 Issue 2

Abstract

A flow visualization study of starve fed solids conveying in single screw and a modular self-wiping co-rotating twin screw extruder is observed inflow visualization experiments. Single screw extruders exhibit forward Archimedean transport of material on the undersides of the screw. Self-wiping co-rotating twin screw extruders conveying forward in the intermeshing region and in the region near the apex between the screws. Observations are reported of the melting of solid pellets and possible melting mechanisms are discussed.

* Mail address: Prof. Dr. James L. White, Institute of Polymer Engineering, University of Akron, Akron, Ohio 44325-0301, U.S.A.
Received: 1994-5-19
Accepted: 1994-10-11
Published Online: 2013-05-28
Published in Print: 1995-05-01

© 1995, Carl Hanser Verlag, Munich

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Fourteenth in a Series: Pomini SpA: Dynamic International Machinery Manufacturer
  5. Internal Mixers
  6. Non-isothermal Dispersive Flow of a Rubber Mixture Inside an Internal Rotor Mixer
  7. Screw Extrusion/Continuous Mixing
  8. Solids Conveying and Melting in a Starve Fed Self-wiping Co-rotating Twin Screw Extruder
  9. Modeling the Residence Time Distribution of a Non-Intermeshing Twin Screw Extruder
  10. Mixing Ring
  11. Morphology in Blends of a Thermotropic Liquid Crystalline Polymer and Polypropylene
  12. Die Extrusion
  13. Mechanical Effects in Extrusion: Slit Dies
  14. Fibers and Films
  15. Relationship of Stresses in Blown-film Processes
  16. Molding
  17. Modelling and Experiments of Squeezing Flow of Polymer Melts
  18. Crystallization Behavior of Carbon Fiber Reinforced Polyamides (I) Dynamic and Isothermal Crystallization
  19. Structures and Properties of Injection Moldings of β-Crystal Nucleator-Added Polypropylenes
  20. Forging
  21. Numerical Simulation of Polymer Forging
  22. Rapid Communication of Recent Advances
  23. Unstable Gas Penetrations in Symmetrical Rib Channels During Gas-assisted Injection Molding
https://doi.org/10.3139/217.950105

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Fourteenth in a Series: Pomini SpA: Dynamic International Machinery Manufacturer
  5. Internal Mixers
  6. Non-isothermal Dispersive Flow of a Rubber Mixture Inside an Internal Rotor Mixer
  7. Screw Extrusion/Continuous Mixing
  8. Solids Conveying and Melting in a Starve Fed Self-wiping Co-rotating Twin Screw Extruder
  9. Modeling the Residence Time Distribution of a Non-Intermeshing Twin Screw Extruder
  10. Mixing Ring
  11. Morphology in Blends of a Thermotropic Liquid Crystalline Polymer and Polypropylene
  12. Die Extrusion
  13. Mechanical Effects in Extrusion: Slit Dies
  14. Fibers and Films
  15. Relationship of Stresses in Blown-film Processes
  16. Molding
  17. Modelling and Experiments of Squeezing Flow of Polymer Melts
  18. Crystallization Behavior of Carbon Fiber Reinforced Polyamides (I) Dynamic and Isothermal Crystallization
  19. Structures and Properties of Injection Moldings of β-Crystal Nucleator-Added Polypropylenes
  20. Forging
  21. Numerical Simulation of Polymer Forging
  22. Rapid Communication of Recent Advances
  23. Unstable Gas Penetrations in Symmetrical Rib Channels During Gas-assisted Injection Molding
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