| Titre : |
Investigations on tightness of polymer-metal hybrids in environments with thermal, media, and mechanical loads |
| Type de document : |
texte imprimé |
| Auteurs : |
J.-M. Geck, Auteur ; S. Jarka, Auteur ; Hans-Peter Heim, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 467-473 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Composites à fibres de verre
Insert (technologie)En plasturgie ou fonderie, un insert désigne une pièce d'un matériau infusible incluse dans la pièce fabriquée. Cet élément sert en général à la fixation ultérieure d'éléments mécaniques ou sert de renfort (exemple : chemise d'usure).
Joints d'étanchéité
Métaux
Polyamide 66
Polyphthalamide
Polysulfures de phénylène
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
With polymer-metal hybrids becoming more commonly used as structural components it was investigated how they perform in complex environments with combined thermal, media, and mechanical loads. Special attention was put on media tightness under said loads. This paper sums up the activities of the polymer technology research group of the University of Kassel on hybrids produced by overmolding metal inserts. Investigations concerning joint strength and influence of (cyclic) temperature loads and chemical corrosion on media tightness of the joint were undertaken with different polymer-metal hybrid specimen geometries (simple and complex). In order to enhance adhesion and joint strength, different bonding agents and adhesives were used in the experiments. It could be shown that all joints of polymer-metal hybrids lost their tightness after being exposed to temperature ranges from 30 to +150°C due to their highly different thermal expansion behavior. An elastomeric intermediate layer of certain minimum thickness in order to compensate the relative movement of plastic and metal and thus maintain integrity of the joint regardless of temperatures is proposed. |
| Note de contenu : |
- Material's reaction to media
- Basic investigations with simple hybrid specimens
- Triangular specimen : Media tightness and residual stress
- Demonstrator |
| DOI : |
10.3139/217.3376 |
| En ligne : |
https://drive.google.com/file/d/1Nm1C_6K2aXEacpYoAbXasUC64dSA10P9/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28903 |
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXII, N° 4 (08/2017) . - p. 467-473
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