| Titre : |
Influence on product quality by PVT-optimised processing in injection compression molding |
| Type de document : |
texte imprimé |
| Auteurs : |
Christian Hopmann, Auteur ; A. Reßmann, Auteur ; Julian Heinisch, Auteur |
| Année de publication : |
2016 |
| Article en page(s) : |
p. 156-165 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Matières plastiques -- Moulage par compression
Mesure de pression-volume-température
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The production of functional optical parts made of plastics is a growing market and the associated production processes have to be developed to fulfil the increasing quality requirements. In this paper an alternative injection compression molding process using the pvT-behavior of the plastics material is compared to the conventional processing method using an isobaric process path. For both control strategies a cavity pressure loop-control is implemented and used. According to measurements of the mold surface reproduction accuracy and internal properties of the molded part the processing method using the pvT-behavior results in a higher optical part quality in the same cycle time compared to the isobaric processing method. |
| Note de contenu : |
- INTRODUCTION : Categorised variables - Quality of optical components - The pvT-optimised process control - Developments in injection compression molding for optics
- BASICS FOR THE IMPLEMENTATION OF A PVT-OPTIMISATION
- PROCESS SET-UP : Set-up of the injection phase - Implementing a cavity pressure controlled isobaric process - Set-up of a cavity pressure controled pvT-optimisation process
- RESULTS OF THE INVESTIGATED PROCESS CONTROL VARIANTS : Design of experiments - Accuracy of the mold surface reproduction |
| DOI : |
10.3139/217.3058 |
| En ligne : |
https://drive.google.com/file/d/1EOfZVW1I10VsNJjACfbA0ZxLWf6iru31/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26170 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXI, N° 2 (05/2016) . - p. 156-165
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