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Journal of Plastics Technology 2009/02

Radial Temperature Modelling inside the Screw Channel for Tempered Single Screws

To achieve a constant product quality during extrusion and injection moulding processes it is of utmost importance to keep a certain mass temperature inside the screw channel and over the screw length. Local temperature peaks have to be avoided, as they can lead to thermal degradation of the material. For the theoretical characterization of the radial temperature profile inside the screw channel and the resultant temperature profile over the screw length mathematical-physical models are required. With help of these models it is possible to optimize the design of a plasticizing unit for a particular application. Modelling the temperature profiles for screws without tempering is the state of the art. However, the calculation of radial temperature profiles of thermoplastics for tempered screws was impossible on the basis of existing mathematical-physical models until now. So far, the screw was regarded as an adiabat object without heat flux into the screw.

Dipl.-Ing. Karsten Anger 1 | Prof. Dr.-Ing. Helmut Potente 1 | Prof. Dr.-Ing. Volker Schöppner1 | Dipl.-Ing. H. Hömann1 | Prof. Dr. SönkeHansen2
1 Institut für Kunststofftechnik KTP, University of Paderborn
2 Institut für Mathematik, University of Paderborn

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The Journal of Plastics Technology is a peer reviewed internet periodical published under the auspices of the Scientific Alliance of Polymer Technology (WAK)


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International Polymer Processing

International Polymer Processing, the journal of the Polymer Processing Society, is a discussion forum for the world-wide community of engineers and scientists in the field of polymer processing.

The journal covers research and industrial application in the very specific areas of designing polymer products, processes, processing machinery and equipment.


International Polymer Processing


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The Journal of Plastics Technology is indexed in SCOPUS, the largest abstract and citation database of peer-reviewed literature.