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Application of high intensity air-borne ultrasound for debubbling liquid coating layers
|Authors:||González Gómez, Icíar; Rodríguez, Jaime; Garmendia, I.; Gallego Juárez, Juan Antonio|
|Keywords:||High-power ultrasonic processing|
|Citation:||Ultrasonics 44 : e529-e532 (2006)|
|Abstract:||In the coating processes, the formation of bubbles and microbubbles is relatively frequent inside the coating layer. Such bubbles, which are formed as a consequence of air retention, are difficult to remove and specifically in high-speed (quick-drying) industrial application where they cause permanent imperfections in the homogeneity of the layer. High-intensity air-borne ultrasound may represent a clean means to improve homogenization by quickly breaking the bubbles just when they are formed inside the coating film. This paper deals with the direct application of air-borne high-intensity ultrasonic radiation at a frequency of about 21 kHz over coating layers just immediately they have been deposited over wood substrates. Such novel process has been implemented and experimentally studied at laboratory and semi-industrial stages.|
|Description:||4 páginas, 6 figuras|
|Publisher version (URL):||http://dx.doi.org/10.1016/j.ultras.2006.05.118|
|Appears in Collections:||(IA) Artículos|
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