| Titre : |
Screw drive power of single screw plasticating units with smooth barrels |
| Type de document : |
texte imprimé |
| Auteurs : |
H. Potente, Auteur ; C. Obermann, Auteur |
| Année de publication : |
1999 |
| Article en page(s) : |
p. 21-27 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
In this contribution the computation of the drive power of Single screw machines with smooth feed sections for extruders and injection molding machines will be presented. The drive power will be determined by means of the shear stresses at the barrel wall for the completely melt-filled channels as well as for the polymer melting section of the screw. In order to determine the shear stress and thus the power consumption the correct velocity profiles in the screw channels must be known, taking into account the non-Newtonianflow behavior of the polymer melt. For analytical solutions of this problem extreme simplifications are necessary. For this reason approximation equations are set up, which are based on numerical tests and by means of which a reliable determination of the screw drive power is possible, knowing the throughput, the temperature development across the screw as well as the melting profile. |
| Note de contenu : |
- Basics
- Power consumption for mere melt transport
- Power consumption in melting sections
- Computer realization
- Simulation results and comparison to experiments |
| DOI : |
10.3139/217.1523 |
| En ligne : |
https://drive.google.com/file/d/1OlZzr-K9ZRFK1icLoMQnXvZRWUghooKJ/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16107 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XIV, N° 1 (03/1999) . - p. 21-27
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