| Titre : |
100% inspection of surfaces before gluing |
| Type de document : |
texte imprimé |
| Auteurs : |
célian Cherrier, Auteur ; Richard Söhnchen, Auteur |
| Année de publication : |
2017 |
| Article en page(s) : |
p. 36-39 |
| Langues : |
Multilingue (mul) |
| Catégories : |
Composites à fibres de carbone
Contrôle non destructif
Contrôle technique
Essais (technologie)
Imagerie (technique)
Mouillage (chimie des surfaces)
Plasma à pression atmosphériqueUn plasma à pression atmosphérique (ou plasma à PA ou plasma froid) est le nom donné à une catégorie spéciale de plasma pour lequel la pression approche celle de l’atmosphère.
Le plasma à pression atmosphérique marque une nette différence avec le plasma basse et haute pression. En effet, contrairement à ces derniers aucune enceinte de traitement n'est nécessaire. Ce type de plasma peut donc être utilisé directement sur ligne de production, évitant ainsi l'utilisation de vide qui est extrêmement onéreuse.
Surfaces -- Analyse
Taille des gouttelettes
|
| Index. décimale : |
668.3 Adhésifs et produits semblables |
| Résumé : |
There is a new solution on the market for the in-line inspection of the surface condition before gluing. A fine fog is sprayed and evaluated for analysis of the surface energy. This non-destructive test is performed in real time, leaves no residues and covers the entire component. |
| Note de contenu : |
- Functional principle
- Info box : The facts about the wetting test at a glance - Applications - Advantages and benefits - Technical data
- Detection of contamination
- Characterisation of surface treatments
- Application and benefits
- FIGURES : 1. Measurement carried out by a robot - 2. Wetting test process chain - 3. Wetting of a CFRP specimen on a conveyor belt. What is known as a water aerosol is produced on the surface with an ultrasound nozzle - 4. Different droplet sizes on a CFRP surface : the area on the right was treated with atmospheric pressure plasma ; here the wettability is much better and therefore the droplets are larger on average - 5. Evaluation of the droplets on a CFRP surface using the Visioncheck image processing software (a zoomed section of the original image is shown on the left, the same area after applying the droplet recognition algorithm is presented in the middle, and the evaluation of each individual drolet is shown on the right) - 6. Sample evaluation and good/bad classification of an area contaminated by a fingerprint, using automated image processing software - 7. Measurement results with evaluation of the average droplet size and wetting percentage : the diagrams on the left show the results of a plasma-activated specimen (activation Lvl1 < activation Lvl2), the diagrams on the right show the results of specimens contaminated by parting agents in various concentrations. These were tested within the scope of the ComBoNDT project (this ComBoNDT project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement no. 636494) |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=28068 |
in ADHESION - ADHESIVES + SEALANTS > Vol. 14, N° 1/2017 (2017) . - p. 36-39
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100% inspection of surfaces before gluing in ADHESION - ADHESIVES + SEALANTS, Vol. 14, N° 1/2017 (2017)
