| Titre : |
Polymer flow velocity in the helical channel in dependence of a coordinate system |
| Type de document : |
texte imprimé |
| Auteurs : |
R. Sikora, Auteur ; E. Sasimowski, Auteur |
| Année de publication : |
2000 |
| Article en page(s) : |
p. 221-232 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
668.9 Polymères |
| Résumé : |
Screw extrusion/mixing - Taking into consideration the extensive literature we conducted our own studies of polymer flow velocity in the helical channel of the plasticating system. They included the following subjects : studies conditions in rectangular and helical coordinate systems–a model with a rotating barrel and a model with a rotating screw (theoretical principles); computational verification on the concrete example for different screw channel depths; comparison of the models with regard to drag flow velocity, pressure flow velocity, longitudinal flow velocity (resultant), shear rate and polymer viscosity.
The thesis that both models of a screw-based plasticating system with a rotating barrel or a rotating screw differ fundamentally was confirmed in the same conditions in two coordinate systems–rectangular and helical. In connection with this theoretical investigations at a rotating barrel and next their experimental verification at a rotating screw, which is a common practice, are unsuitable. |
| Note de contenu : |
- Studies conditions
- Rectangular coordinate system
- Helical coordinate system
- Comparison of Models |
| DOI : |
10.3139/217.1598 |
| En ligne : |
https://drive.google.com/file/d/1xnFaql6evc4fPyqRZqJmpBKf0704lW8L/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15826 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XV, N° 3 (09/2000) . - p. 221-232
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