| Titre : |
Faster and better welding : Tools adaption reduces process times and improves weld quality |
| Type de document : |
texte imprimé |
| Auteurs : |
Stefan Mochev, Auteur ; Ulrich Endemann, Auteur |
| Année de publication : |
2018 |
| Article en page(s) : |
p. 57-59 |
| Langues : |
Anglais (eng) |
| Catégories : |
Composites -- Soudage
Composites à fibres de verre
Matières plastiques -- Soudage
Polyamide 66
Soudage par gaz
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
Hot gas welding has now become an established alternative to vibration and infrared welding. The reasons for this are the mechanically and visually excellent welds obtained and the low-emission, particle-free process. A further development of the welding tool avoids long process times and reduces material degradation. |
| Note de contenu : |
- Improvements demonstrated in practice
- Focus on the weld strength
- Fig. : A relatively minor modification to the hot gas tool not only reduces process time but improves weld quality at the same time
- Fig. 1 : The gas outlet zone of a conventional hot gas tool (left) and modified tool (right) with (a) and without (b) tubes as hot gas nozzles
- Fig. 2 : Comparison between the melt layer thicknesses obtained with a conventional and
a modified hot gas tool shows the reduced plasticizing time at a glance (material : Ultramid B3WG6 GPX, process medium : nitrogen, welding rib width : 4mm)
- Fig. 3 : Photos of melted welding ribs with a homogeneous structure due to the new gas channels (a) and crater-like structures opposite the hot gas nozzles in a conventional tool (b, actual component)
- Fig. 4 : With the modi¬fied tool, melt layer thickness is virtually the same for different distances between the hot gas nozzles and welding rib, which means a wider processing window (heating element temperature: 500°C, material: Ultramid A3WG6, process medium: nitrogen, welding rib width: 4mm)
- Fig. 5 : Comparison between the weld tensile strengths of two different materials achieved with a conventional and a modified hot gas tool (process medium : nitrogen, welding rib width : 4 mm) |
| En ligne : |
https://drive.google.com/file/d/1K3-D_dar3NwmJRMoUpYGrLSrhm-DFXur/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31185 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 9 (09/2018) . - p. 57-59
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Faster and better welding in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 9 (09/2018)
