[article]
| Titre : |
Aspects of radiometry and UV exposure verification for UV curing of complex surfaces nd 3-D objects |
| Type de document : |
texte imprimé |
| Auteurs : |
R. W. Stowe, Auteur |
| Année de publication : |
2007 |
| Article en page(s) : |
p. 32-39 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
Traditional UV radiometry typically uses instruments that are very adaptable to conveyors and discrete-part transport systems through curing systems. Special difficulties in making online measurements are encountered in multipoint 3-D systems and in web, or roll-to-roll systems. As larger and more complex objects are candidates for UV-curable coatings, the challenges of exeposing curable surfaces to adequate UV energy become greater and 3-D processing present some new and different problems for radiometry. For optimized lamp positioning and process venfication, this could require irradiance and energy measurements at almost every point on the surface. Web systems present a completely different problem for in-line radiometry. Although lamps can be monitored with static methods, it is difficult to measure the actual process exposure of a web surface. Electronic instruments will simply not pass through most web systems without risk to the instrument or the machine. For both of these processes, alternative methods of radiometric verification of UV exposure and process radiometry are explored. This study concentrates on some of the key features and responses of radiachromic films with emphasis on their adaptability to complex surface (3-D) curing systems. The principle purpose is to explore the use of instruments to quantify the response of radiachromic films in terms of transmission or reflection densitometry, and correlate them to instrument radiometry. |
| En ligne : |
https://drive.google.com/file/d/1yG2jwoqCdpsnx2EPDw6UvGC7s0NAutSN/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3595 |
in COATINGS TECH > Vol. 4, N° 4 (04/2007) . - p. 32-39
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Aspects of radiometry and UV exposure verification for UV curing of complex surfaces nd 3-D objects in COATINGS TECH, Vol. 4, N° 4 (04/2007)
