| Titre : |
More stability increases attractiveness : Optimized process control for injection molding of thermoset molding compounds |
| Type de document : |
texte imprimé |
| Auteurs : |
Reinhard Schiffers, Auteur ; Topic, Nicolina, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 26-29 |
| Note générale : |
- Disturbances in injection molding
- Process stabilization through adaptive closed-loop control systeme
- Thermoset processing perspectives
- FIGURES : 1. melt pressure and mold cavity pressure curves during the injection and holding pressure phases of two BMC UP (GF+MD) material types with various viscosity: with the same process settings, various pressure curves result, which indicates a different molded part filling - 2. Injection molding of polyester bulk molding compounds with nonreturn valve. In contrast, free-flowing thermoset materials are processed without nonreturn valve. Accordingly changes in viscosity cause the return flow behavior to fluctuate by means of the screw theads and the molded part filling - 3. Basic condition of the test series with BMC-polyester bulk molding compounds: CX 200-750 PolySet injection molding machine with AZ 100 automatic feed unit |
| Langues : |
Anglais (eng) |
| Catégories : |
Matières plastiques -- Moulage par injection
Polyesters
Pression -- Contrôle
Procédés de fabrication
Thermodurcissables
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Their characteristic property profile makes thermosets attractive for many high-performance applications. Batch fluctuations, as well as process and environmental instability, produce disruptive effects in the injection molding of this highly filled, mold cross-linking material class, which have a direct impact on part quality. As part of the "QuaProDur" research project, alongside the Rosenheim University of Applied Sciences, the Deckerform Produktionssysteme GmbH tool manufacturer and the HBW-Gubesch Thermoforming GmbH plastic fabrication company (all located in Germany), KraussMaffei is optimizing the processing of thermoset molding compounds. |
| En ligne : |
https://drive.google.com/file/d/1qtsLHOixZoEYbbMJAPI7pdZ82KbqQ53G/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29134 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 107, N° 8 (08/2017) . - p. 26-29
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More stability increases attractiveness in KUNSTSTOFFE INTERNATIONAL, Vol. 107, N° 8 (08/2017)
