| Titre : |
Three-dimensional melt flow system in the hot runner manifold block : Mass channel design using additive manufacturing opens up quality advantages |
| Type de document : |
texte imprimé |
| Auteurs : |
Simon Wurzbacher, Auteur ; Lucas Schulz, Auteur ; Stefan Kruppa, Auteur ; Reinhard Schiffers, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 47-51 |
| Langues : |
Anglais (eng) |
| Catégories : |
Canaux chauffants
Impression tridimensionnelle
Matières plastiques -- Moulage par injection
Moules d'injection
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The objective of the hot runner design is to ensure that all cavities are supplied with the same melt quality, filling and compression pressures and filling speeds without damaging the melt along the way. The distributor block plays a key role in this process, as it is responsible not only for melt transfer but also for distributing the melt to the individual cavities. Additive manufacturing enables significant improvements in this area – in several dimensions.
|
| Note de contenu : |
- Manufacturing hot runner manifold blocks
- Challenges for manifolds that deviate from 2x cavities
- Experimental setup of a six-cavity test mold
- Numerical analysis of the conventional design
- Design of a three-dimensional manifold system
- Significantly faster purging process
- Fig. 1 : Possibilities of melt channel design for naturally balanced manifold blocks in dependence on manifold block manufacturing method
- Fig. 2 : The six-cavity test mold is used to produce simple closure caps as test specimens
- Fig. 3 : Meshing and results of the numerical study of the conventional manifold (double-Y system). In regions of melt division and deflection, zones of low velocity and low wall shear stress are found
- Fig. 4 : Simulation results of three-in-row distribution and comparison of wall shear stresses of drilled and additively manufactured manifold block
- Fig. 5 : Color exchange trials make clear that purging processes are much more effective on the additively manufactured manifold. The injection molding parameters are summarized below |
| En ligne : |
https://drive.google.com/file/d/1T7-o0XnPQwL9IX86W3LJtoebeI04JcxQ/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40152 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 113, N° 4 (2023) . - p. 47-51
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