Models of Flow and Experimental Studies on a Modular List/Buss Kokneter
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M.-Y. Lyu
Abstract
An experimental and theoretical study of the behavior of a List/Buss Kokneter is presented. The experimental study which uses polypropylene considers (i) the interaction of the Kokneter with a crosshead screw extruder, and (ii) distribution of polymer in the modular screw. A modeling study considers the dynamics of flow including the influence of screw oscillation. Calculations are made for various individual Buss elements. A model is developed for the total system including the crosshead screw extruder. It is shown that an oscillating length of fill in the crosshead screw extruder can account for the throughput oscillation stabilization characteristics of the composite machine. Predictions of pressure profiles and positions of starvation in a starved flow machine are made.
© 1995, Carl Hanser Verlag, Munich
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Sixteenth in a Series: Berstorff: Pioneer of Calenders and Screw Extruders
- Screw Extrusion/Continuous Mixing
- A Throughput Model for Grooved Bush Extruders
- Modeling of Polymer Devolatilization in a Multi-vent Screw Extruder
- Models of Flow and Experimental Studies on a Modular List/Buss Kokneter
- A Study of Distributive Mixing in Counterrotating Twin Screw Extruders
- Stress Controlled Simultaneous On-line Measurements of Viscosity, Flow Exponent, and Melt Index
- Film
- Microporous Film, Made from β-Crystalline Phase Polypropylene
- Analyses of Bowing Phenomena in Successive Transverse Stretching and Thermosetting Process for Biaxially Oriented Film
- Molding
- Comparative Wide-angle X-ray and Microscopical Studies on the Layered Structure in Injection Molded Polypropylene Disks
- Cooling Process Window Development for Injection Molding
- Modeling and Finite Element Analysis of Flow in SMC Compression Molding
- Reactive Processing
- Tool Heat Transfer Analysis in Resin Transfer Molding
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Sixteenth in a Series: Berstorff: Pioneer of Calenders and Screw Extruders
- Screw Extrusion/Continuous Mixing
- A Throughput Model for Grooved Bush Extruders
- Modeling of Polymer Devolatilization in a Multi-vent Screw Extruder
- Models of Flow and Experimental Studies on a Modular List/Buss Kokneter
- A Study of Distributive Mixing in Counterrotating Twin Screw Extruders
- Stress Controlled Simultaneous On-line Measurements of Viscosity, Flow Exponent, and Melt Index
- Film
- Microporous Film, Made from β-Crystalline Phase Polypropylene
- Analyses of Bowing Phenomena in Successive Transverse Stretching and Thermosetting Process for Biaxially Oriented Film
- Molding
- Comparative Wide-angle X-ray and Microscopical Studies on the Layered Structure in Injection Molded Polypropylene Disks
- Cooling Process Window Development for Injection Molding
- Modeling and Finite Element Analysis of Flow in SMC Compression Molding
- Reactive Processing
- Tool Heat Transfer Analysis in Resin Transfer Molding
