Coating removal system having a solid particle nozzle with a...

B - Operations – Transporting – 44 – D

Patent

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Details

B44D 3/16 (2006.01) B08B 7/00 (2006.01) B24C 1/00 (2006.01)

Patent

CA 2393199

An apparatus (110) is provided for removing a coating (200) from a substrate (220), comprising a nozzle (140) having an outlet (142) and adapted to direct a particle stream therethrough at a predetermined flow rate, a signal source (162) for emitting a signal capable of traversing the particle stream, and a signal sensor (164) positioned to detect the signal emitted by the signal source once the signal has passed through the particle stream. The particle stream is directed from the outlet of the nozzle toward a coating on a substrate to remove the coating from the substrate. Since the signal emitted by the signal source traverses the particle stream before being detected, the intensity of the signal detected by the signal sensor corresponds to a flow rate of the particle stream such that a subsequent change in the intensity of the signal that is detected by the signal sensor indicates a change in the flow rate of the particle stream. A method of monitoring a particle flow in an apparatus used for removing a coating from a substrate is also provided.

La présente invention concerne un appareil permettant d'enlever un revêtement d'un substrat, comportant une buse présentant un orifice de sortie et apte à diriger un flot de particules à travers celui-ci à un débit prédéterminé, une source de signaux permettant d'émettre un signal pouvant traverser le flot de particules, et un capteur de signaux apte à détecter le signal émis par la source de signaux lorsque le signal a traversé à travers le flot de particules. Le flot de particules est dirigé à partir de l'orifice de la buse vers un revêtement sur le substrat en vue d'enlever le revêtement du substrat. Etant donné que le signal émis par la source de signaux traverse le flot de particules avant d'être détecté, l'intensité du signal détecté par le capteur de signaux correspond au débit du flot de particules de sorte qu'une modification dans l'intensité du signal détecté par le capteur de signaux signifie une modification dans le débit du flot de particules. La présente invention concerne également un procédé de contrôle d'un débit d'écoulement de particules dans un appareil utilisé pour enlever un revêtement d'un substrat.

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