| Titre : |
Exciting design instead of exciting manufacturing : A 3D-printed nozzle and modified dosing method deliver reproducible marbling in a robust process |
| Type de document : |
texte imprimé |
| Auteurs : |
Reinhard Jakobi, Auteur ; Angelika Homes, Auteur ; Susanne Zeiher, Auteur |
| Année de publication : |
2020 |
| Article en page(s) : |
p. 10-12 |
| Langues : |
Anglais (eng) |
| Catégories : |
Marbrage
Matériaux -- Application-dosage
Matières plastiques -- Appareils et matériel
Matières plastiques -- Décoration
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Marbling is often a real eye-catcher in plastic components. However, the effect is difficult to create and there are some pitfalls when it comes to reproducibility. Novel nozzles for injection molding machines in combination with a special dosing technology allow marbled molded parts to be produced far more easily in a much more robust process |
| Note de contenu : |
- Just one plasticizing unit*
- Figure : Marbling leads to attractively designed molded plastic parts, but is not so easy to implement in production
- Fig. 1 : All kinds of marbling effects can be achieved, depending on the channel geometry employed
- Fig. 2 : Not only flat molded parts but also attractive three-dimensional articles can be produced with a marblinhg effect. Correct dosing and the combination of "contrast" batches and coloring component during production are also important
- Fig. 3 : Molds fitted with hot runners and tunnel sprues can be used to produce very attractive patterns. As these molde are not injected from a central point the marbling streaks vary in their pattern
- Fig. 4 : Nozzle inserts made by 3D printing offer designers huge freedom of design. Flow-optimized channel geometries in the nozzles can be used to make the melt swirl on its way into the mold. This also supports the creaction of rotationally symmetrical patterns
- Fig. 5 : The surface finish of the mold cavity influences the appearance of the samples. Highly polished surfaces strongly accentuate contrasts. Textured surfaces leads to a matt appearance
- Table 1 : Influencing factors on the marbling |
| En ligne : |
https://drive.google.com/file/d/1FX7djN3tqbpO5aDc6ubT-ZCPBKLAnCxo/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34708 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 110, N° 6 (2020) . - p. 10-12
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Exciting design instead of exciting manufacturing in KUNSTSTOFFE INTERNATIONAL, Vol. 110, N° 6 (2020)
