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http://dx.doi.org/10.18419/opus-13414
Autor(en): | Wellekötter, Jochen Bonten, Christian |
Titel: | Direct Joule heating as a means to efficiently and homogeneously heat thermoplastic prepregs |
Erscheinungsdatum: | 2020 |
Dokumentart: | Zeitschriftenartikel |
Seiten: | 21 |
Erschienen in: | Polymers 12 (2020), No. 2959 |
URI: | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-134330 http://elib.uni-stuttgart.de/handle/11682/13433 http://dx.doi.org/10.18419/opus-13414 |
ISSN: | 2073-4360 |
Zusammenfassung: | Although direct Joule heating is a known technique for heating carbon fiber reinforced plastics, it is a yet unexplored heating method for thermoplastic prepregs before back-injection molding. The knowledge obtained from resistance welding, for example, is not directly transferable because of considerably higher heated volumes and more complex shapes. In this study, the governing parameters and process limits are established for this method. The influences of the contacting, the materials used, and the size of the heated part are investigated with respect to the part temperature and heating efficiency. The findings show that the quality of heating is determined by the shape and size of the electrodes. Larger electrodes lead to a more homogeneous temperature distribution. Parts based on woven fabric can be heated more homogeneously because of the existence of intersections between rovings, generating contact between fibers. An increase in part width results in uneven heating behavior. |
Enthalten in den Sammlungen: | 04 Fakultät Energie-, Verfahrens- und Biotechnik |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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polymers-12-02959.pdf | 734,21 kB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons