| Titre : |
Putting hybrid components to the test : Test procedure for durability of metal components that have been injection-overmolded with PPS |
| Type de document : |
texte imprimé |
| Auteurs : |
René Krämer, Auteur |
| Année de publication : |
2019 |
| Article en page(s) : |
p. 117-119 |
| Langues : |
Anglais (eng) |
| Catégories : |
Assemblages multimatériaux
Composites à matrice organique
Matières plastiques -- Moulage par injection
Matières plastiques -- Propriétés thermiques
Matières plastiques -- Surmoulage
Métaux
Polysulfures de phénylène
Résistance thermique
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The different thermal expansion of plastics compared with metals makes it difficult to design components that combine both materials. A new test procedure simulates in a time lapse the aging process of plastic-metal hybrid components when temperatures change. Using two contrasting test procedures, reliable information can be derived to assist in the designer. |
| Note de contenu : |
- Varying thermal expansion
- Two test blocks with different characteristics
- Comprehensive tests provide indications
- Fig. 1 : In this complexly formed high-voltage rail for electric vehicles, copper conductors were injection overmolded with PPS. Dut to the many conductors and various screw points, weld lines are reacted that become weak points when the temperature changes
- Fig. 2 : The two test blocks that were developed for the heat cycle tests are made of metal and plastic. The version to the left was injection-overmolded from the side and shows weld lines ; the one to the righe was injection-overmolded from above with no weld lines
- Fig. 3 : An overview of the thermal portfolio of properties of the plastics which were investigated. No compound delivered optimal results, but ype A675GS1B provides at least good, and, in many cases very good, results for all dimensions
- Fig. 4 : Completed heat cycles by various compounds up to the onset of a crack. In each instance, the metal-plastic thermal expansionwas evaluated |
| En ligne : |
https://drive.google.com/file/d/1y9OjQz4YB-_9ViPVNEpqdgADE1Lg_EQo/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=33179 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 109, N° 9 (09/2019) . - p. 117-119
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Putting hybrid components to the test in KUNSTSTOFFE INTERNATIONAL, Vol. 109, N° 9 (09/2019)
