Analysis of a single screw extruder with a grooved plasticating barrel - Part I : the melting model / José Antonio Avila Alfaro in INTERNATIONAL POLYMER PROCESSING, Vol. XXX, N° 2 (05/2015)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXX, N° 2 (05/2015) Titre : Analysis of a single screw extruder with a grooved plasticating barrel - Part I : the melting model Type de document : texte imprimé Auteurs : José Antonio Avila Alfaro, Auteur ; Eberhardt Grünschloß, Auteur ; Stefan Epple, Auteur ; Christian Bonten, Auteur Année de publication : 2015 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Extrudeuse monovis Matières plastiques -- Extrusion -- Appareils et matériels Modèles mathématiques Polymères -- Fusion Prévision, Théorie de la Vis barrière Index. décimale : 668.4 Plastiques, vinyles Résumé : Single screw extruders with barrier screws, grooved feed zones and grooved melting zones were introduced to the European plastics industry in 1999. These extruders have an improved melting and conveying capacity among other advantages, such as a lower melt temperature, less wear, less torque and less energy consumption. The aim of this paper is to present a mathematical model for predicting the melting rate in this type of extrusion system. Based on the classical melting mechanism observed in conventional extruders, it was possible to study the effect of the geometry of the grooved barrel on the melting rate of a polymer. It was shown that the grooves on the barrel notably increase the melting rate, when compared to conventional single screw extruders. A good agreement between theory and experimental data was found. Note de contenu : - THEORETICAL MODEL : Melting rate in the space between two grooves - EXPERIMENTS : Model validation - Parameter study - RESULTS AND DISCUSSION : Solid bed length validation - Melting rate validation - Parameter study - Extruder simulation DOI : 10.3139/217.3021 En ligne : https://drive.google.com/file/d/1ovEnaF589jCnoFhVELhjOll5L4VAA8D8/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23911 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
17180	-	Périodique	Bibliothèque principale	Documentaires	Disponible

Analysis of a single-screw extruder with a grooved plasticizing barrel – experimental investigation / Jochen Kettermann in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIV, N° 1 (03/2019)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXXIV, N° 1 (03/2019) . - p. 143-150 Titre : Analysis of a single-screw extruder with a grooved plasticizing barrel – experimental investigation Type de document : texte imprimé Auteurs : Jochen Kettermann, Auteur ; José Antonio Avila Alfaro, Auteur ; Christian Bonten, Auteur Année de publication : 2019 Article en page(s) : p. 143-150 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Extrudeuse monovis Extrudeuses -- Analyse Index. décimale : 668.4 Plastiques, vinyles Résumé : In the field of extrusion, a very promising high performance extruder was introduced to the European plastics industry in 1999. This new type of single-screw extruder combines a grooved plasticizing barrel with a barrier screw. Compared to conventional extrusion systems, these extruders have by far a higher output and product quality among other advantages such as lower processing costs and lower energy consumption. In the past, both Newtonian and non-Newtonian models were developed to calculate and predict the melting rate along the flow channel. The aim of this paper is to present experimental investigations on the processes within the melting zone of a single-screw extruder with a grooved plasticizing barrel. To visualize the melting mechanisms, screw extraction experiments as well as dynamic pressure measurements were performed. By means of screw extraction experiments a solid bed was clearly identified only in the solid channel and a melt pool only in the melt channel. Analysis of the dynamic pressure signals also showed the same behavior and therefore allowed in-line characterization of the melting process. Thus, theoretical concepts about the melting mechanisms could be confirmed experimentally. Note de contenu : - EXPERIMENT : Material - Experimental setup - Experimental procedure - RESULTS AND DISCUSSION : Mass throughput - Pressure, temperature and process data - Dynamic pressure - Screw extraction experiments - Analytical simulation of the melting zone DOI : 10.3139/217.3732 En ligne : https://www.degruyter.com/document/doi/10.3139/217.3732/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31926 [article]

Réservation

Réserver ce document

Exemplaires (1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
20669	-	Périodique	Bibliothèque principale	Documentaires	Disponible

---

1 (1 - 2 / 2)