Titre : |
Induction heating of CF-reinforced polymers : Influences of laminate parameters on the induction heating behavior of CFRP |
Type de document : |
texte imprimé |
Auteurs : |
Stephan Becker, Auteur ; Peter Mitschang, Auteur |
Année de publication : |
2018 |
Article en page(s) : |
p. 52-56 |
Langues : |
Anglais (eng) |
Catégories : |
Chauffage par induction Composites à fibres de carbone PolyamidesUn polyamide est un polymère contenant des fonctions amides -C(=O)-NH- résultant d'une réaction de polycondensation entre les fonctions acide carboxylique et amine.
Selon la composition de leur chaîne squelettique, les polyamides sont classés en aliphatiques, semi-aromatiques et aromatiques. Selon le type d'unités répétitives, les polyamides peuvent être des homopolymères ou des copolymères. Polysulfures de phénylène Renforts textiles Stratifiés
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Index. décimale : |
668.4 Plastiques, vinyles |
Résumé : |
Induction as contactless heating technology is also attractive for composite materials. The efficiency of the technology has so far been limited by the resulting complex temperature distribution. Therefore, it is necessary to fundamentally investigate the influences of the laminate parameters on the induction heating behavior of CFRP. |
Note de contenu : |
- Basics of induction heating
- Inhomogeneous temperature distribution
- Understanding the heating behavior
- Thread count : more rovings - less contact area
- Linear density : the finer, the bigger the contact area
- Fiber volume content : heating rate increases with FVC
- Influence of the matrix polymer
- Fig. : By means of the induc-tion welding robot devel-oped by IVW it is possible for example to continu¬ously join omega profiles with CF-PPS skin sheets or to discontinuously join clips made of CF-PPS with sheet metals made of titan ideal for lightweight design
- Fig. 1 : Induction heating: temperature distribution on the inductor faced (left) and the opposite laminate surface (right) after 4.1s at a 2 mm thick carbon fiber-reinforced polyamide 66
- Fig. 2 : Heating mechanisms for the induction heating shown at a unit cell of plain weave and in an electronic model
- Fig. 3 : Experimental set-up for the investigation on the influences of various laminate parameters on the induction heating behavior of CFRP
- Fig. 4 : A higher thread count results in a smaller heating rate on both surfaces of the CFRP laminate
- Fig. 5 : An increase in the linear density leads to a reduction of the heating rate on bot laminate surfaces ; n: number of textiles reinforcement layers
- Fig. 6 : If the fiber volume content is increased, the heating rate of the CFRP laminate will be increased as well ; n: number of textiles rein-forcement layers
- Fig. 7 : The influence of the polymer of the matrix on the induction heating behavior of CFRP depends on the fabric type of the reinforcement textile and on the thread count; n: number of textiles reinforcement layers
- Table 1 : Specimens made of 2.2 mm thick laminates were used to investigate the influence of various laminate parameters on the induction heating behavior of CFRP
- Table 2 : Dielectric properties of the used polymers in humid condition at MHz |
En ligne : |
https://drive.google.com/file/d/108ducyd8rQ_l00-7L841HvOpHb71hDVD/view?usp=drive [...] |
Format de la ressource électronique : |
Pdf |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31179 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 9 (09/2018) . - p. 52-56