| Titre : |
Bright prospects : Targeted control of the pin opening speed |
| Type de document : |
texte imprimé |
| Auteurs : |
Julian Schild, Auteur ; Simon Wurzbacher, Auteur |
| Année de publication : |
2023 |
| Article en page(s) : |
p. 44-48 |
| Langues : |
Anglais (eng) |
| Catégories : |
Canaux chauffants
Matières plastiques -- Moulage par injection
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Surface blemishes in the form of differences in gloss level are typical defects on flat, sequentially filled parts. With Synflow technology, part quality can be ensured easily and in a reproducible manner. |
| Note de contenu : |
- Checking the melt flow with synflow
- Speed of pin opening is controlled via valve
- Test setup enables a wide range of injection scenarios
- Pressure curves illustrate the effects
- A look into the cavity illustrates the effect
- Gloss-level optimization by adjusting the pin opening speed
- Fig. 1. Differences in gloss level caused by a sudden pressure drop can result in substantial quality costs for sequentially filled parts (left without Synflow, right with Synflow)
- Fig. 2. Schematic diagram for delaying the pin opening speed using Synflow
- Fig. 3. Injection pressure curve over pin opening speed and injection speed
- Fig. 4. Influence of Synflow on hesitation lines at different injection speeds
- Fig. 5. Internal tool pressure curve over pin opening speed
- Fig. 6. Gloss level along the direction of flow |
| En ligne : |
https://drive.google.com/file/d/1ymlj2O4JCEPAjVbXEd9cdukaZk9jwRVN/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=40750 |
in PLASTICS INSIGHTS > Vol. 113, N° 9 (2023) . - p. 44-48
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Bright prospects in PLASTICS INSIGHTS, Vol. 113, N° 9 (2023)
