Fully automated manifold design in hot runner technology / Henning Becker in PLASTICS INSIGHTS, Vol. 113, N° 8 (2023)  

[article]  inPLASTICS INSIGHTS > Vol. 113, N° 8 (2023) . - p. 54-56 Titre : Fully automated manifold design in hot runner technology : AI paves the way : design at the push of a button Type de document : texte imprimé Auteurs : Henning Becker, Auteur ; Stefan Eimeke, Auteur ; Marius Dörner, Auteur Année de publication : 2023 Article en page(s) : p. 54-56 Langues : Anglais (eng) Catégories : Assurance qualité Canaux chauffants Conception technique Intelligence artificielle Matières plastiques -- Moulage par injection Simulation par ordinateur Index. décimale : 668.4 Plastiques, vinyles Résumé : When using hot runner systems, thermal homogeneity in the manifold system is at least as important as the fully balanced design of the flow channels. These two factors are the basic prerequisite for a stable injection molding process and consistent part quality. A demanding large-scale project, which the hot runner manufacturer Ewikon is realizing together with the simulation and AI specialist Ianus, aims at the AI-supported, fully automated design of manifold systems under thermal and energetic aspects. Note de contenu : - Each manifold unique - Thermal symmetry within the balanced melt channel guide - Customers are already benefiting - AI opens up new possibilities - Automated thermocouple positioning - The road to complete automation En ligne : https://drive.google.com/file/d/19l0r2tFvahwANWpd-1qPoSyy-lR8LfB-/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40555 [article]

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On the wave to successful mixing / Maximilan Frank in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 3 (2022)  

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 112, N° 3 (2022) . - p. 56-59 Titre : On the wave to successful mixing : New concepts for extrusion screws Type de document : texte imprimé Auteurs : Maximilan Frank, Auteur ; Marius Dörner, Auteur ; Christian Marschik, Auteur ; Volker Schöppner, Auteur Année de publication : 2022 Article en page(s) : p. 56-59 Langues : Anglais (eng) Catégories : Mélange Polyéthylène haute densité Vis d'extrusion Index. décimale : 668.4 Plastiques, vinyles Résumé : On the test stand : the University of Paderborn, Germany, investigated conventional and new concepts for extrusion screws in order to achieve higher throughputs while retaining machine sizes. The energy-transfer screws, a further development of the wave screw, scored particularly well. Note de contenu : - Mixing sequences in single-screw extrusion - Mixing quality under the microscope - The throughputs of the different screw concepts - The wave-screw : high mixing quality and large degree of freedom - Fig. 1 : Unwound channel geometry of a double-wave and an energy-transfer screw - Fig. 2 : Schematic representation of the dispersive and distributive mixing mechanisms - Fig. 3 : . Exemplary estimate of gray value distribution as a histogram (left) with thin sections belonging to barrier and energy-transfer screws at 100 rpm - Fig. 4 : Channel cut of the simulation in the melting zone of the screw - Fig. 5 : Scheme of the particle tracking method as well as extracted and triangulated particle distribution - Fig. 6 : Exemplary application of the bin counting method. Source: Paderborn University, graphic - Fig. 7 : Exemplary triangulation of point distribution by Delaunay triangulation - Fig. 8 : Qualitative comparison between the expreimentally determined thin sections at the end of the screw and the triangulated, simulatively determined particle distributions at 100 rpm - Table 1 : Comparison of the throughputs of HDPE achieved by the different screw concepts given completely melted polymer flow En ligne : https://drive.google.com/file/d/1Fa6A114bSqKEbTBnnReH2V8Xlz7s0n5q/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37716 [article]

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