| Titre : |
The one that shears, splits, and folds material : Gentle compounding with high mixing effect and good scalability in the co-kneader |
| Type de document : |
texte imprimé |
| Auteurs : |
François Loviat, Auteur ; Andreas Niklaus, Auteur ; Robert Hollosi, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 46-49 |
| Langues : |
Anglais (eng) |
| Catégories : |
Granulés plastiques
Malaxeurs et mélangeurs
Matières plastiques -- Extrusion
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The patent on the operating principle of the co-kneader was applied for three quarters of a century ago. Compared to other extruder technologies, it features a clearly higher mixing effect while it processes the raw materials gently. Current applications for its further development range from reactive, shear-sensitive plastics to the compounding of high-performance engineering plastics. |
| Note de contenu : |
- Kneading flights : They make it work
- From the idea to a wide range of applications
- Figure : Looking into the process chamber of the current genration of Compeo type co-kneaders we see the position of the statonary kneading pins in the barrel that comb the kneading flights of the modular
- Fig. 2 : Title figure and sketch from Heinz List's patent specification no. 247704
- Fig. 3 : In operation, the plastic mass is sheared in the shear gap between the kneading flights and kneading pins
- Fig. 4 : Interaction between screw shaft rotation and reciprocation
- Fig. 5 : Mixing effect of a four-flight screw element spread out in the plane and abstractly represented using the kneading pin paths that arise during one complete revolution of the screw shaft. The plastic mass is sheared, split, and refolded between the kneading pins and the kneader flights passing them in real operation
- Fig. 6 : Technology comparison : degree of fulfillment of requirements for manufacturing semiconductive compounds for high-voltage cables, PVC compounds for medical technology and parts for the electrical industry, each in comparison with a competing compounding technology |
| En ligne : |
https://drive.google.com/file/d/1BvRlL-E8ZgEq8hxL2W9POuVg4h_LOxqb/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34638 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 8 (2020) . - p. 46-49
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