Design basis and hydrodynamic performance analysis of single-screw extruders. I - polymer flow behaviour

Purpose - The purpose of this paper is to investigate the hydrodynamic performance of a single-screw extruder with special reference to metering region.Design methodology approach - The hydrodynamic analysis of a single screw extruder is carried out by dimensional and non-dimensional parameters defi...

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Bibliographic Details
Published in:Industrial lubrication and tribology 2009-06, Vol.61 (4), p.188-196
Main Authors: KOC, Erdem, DEMIRYÜREK, Oguz
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Extrusion moulding
Fluid dynamics
Fluid mechanics
Fundamental areas of phenomenology (including applications)
General theory
Geometry
Heat
Injection molding
Machinery and processing
Mathematical models
Moulding
Physics
Plastics
Polymer industry, paints, wood
Polymer melts
Polymers
Simulation
Studies
Technology of polymers
Textile industry
Velocity
Viscosity
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Summary:Purpose - The purpose of this paper is to investigate the hydrodynamic performance of a single-screw extruder with special reference to metering region.Design methodology approach - The hydrodynamic analysis of a single screw extruder is carried out by dimensional and non-dimensional parameters defining the polymer flow behaviour. The flow types formed in the extruder channel are defined and the relationship between the flow with the extruder geometry is examined.Findings - The theoretical model developed is capable of estimating the hydrodynamic behaviour of extruder metering region. With the model developed, extruder geometry and polymer flow rate under different operating conditions can be predicted.Originality value - This paper offers a quick and easy opportunity to examine the hydrodynamic behaviour of extruder metering region. With the theoretical model developed, the behaviour of the flow in extruder can be modelled and estimated.
ISSN:0036-8792
1758-5775
DOI:10.1108/00368790910960011