| Titre : |
Prototype system to study the effect of weld lines on the performance of extruded profiles |
| Type de document : |
texte imprimé |
| Auteurs : |
Olga. S. Carneiro, Auteur ; A. R. Mota, Auteur ; Y. Sitotaw, Auteur ; J. M. Nóbrega, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 254-261 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Lignes de soudure
Matières plastiques -- Extrusion
Profilés
Prototypes
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
In several thermoplastic extrusion based processes the melt flow has to be divided into independent streams that are merged before the flow channel outlet. This promotes the formation of weld lines, usually related to mechanical weak zones and aesthetic imperfections. There is a large amount of scientific publications related to weld lines formed in other processing techniques, e. g. injection molding. However, studies related to extrusion are scarce. This work presents the conception of a new prototype system that allows performing systematic studies aiming a better understanding of the effect of weld lines in extrusion. A case study illustrates the employment of the developed device to study the effect of several process parameters (e. g. spider leg location, processing temperature and flow rate) on the mechanical performance of the extruded profiles. |
| Note de contenu : |
- PROTOTYPE SYSTEM : Description - Potential - Case study
- RESULTS AND DISCUSSION : Effect of the spider leg location - Effect of extrusion temperature - Effect of flow rate |
| DOI : |
10.3139/217.3200 |
| En ligne : |
https://drive.google.com/file/d/1FZcrG6VJKc5UdqeuDP0ztIS8puG9pDnU/view?usp=drive [...] |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26184 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXI, N° 2 (05/2016) . - p. 254-261
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