Chamber for applying a thermal spray coating and method of...

Details Chamber for applying a thermal spray coating and method of... Chamber for applying a thermal spray coating and method of...

B - Operations, Transporting

05

D

B05D 1/08 (2006.01) B05B 7/22 (2006.01) C23C 4/12 (2006.01)

Patent

CA 2055897

An apparatus (10) for applying a thermal spray coating onto a substrate (24) includes a chamber (16) having an open bottom portion (18), a gas source for releasing a gas lighter than oxygen into the chamber (16) and displacing the oxygen from the chamber (16), and a spray gun (30) for spraying coating through the gas in the chamber (16) and onto the substrate (24). A method is also provided including the steps of displacing oxygen from the chamber (16) with the gas, and spraying the coating through the gas and onto the substrate (24) disposed within the chamber, the gas preventing oxidation between the substrate (24) and layers of the coating.

ppareil (10) servant à appliquer un revêtement par pulvérisation à chaud sur un substrat (24) comprenant une chambre (16) dont la partie inférieure (18) est ouverte, une source de gaz pour libérer un gaz plus léger que l'oxygène dans la chambre (16) et chasser l'oxygène de la chambre (16) et un pistolet pour pulvérisation à chaud (30) pour pulvériser le revêtement au moyen du gaz dans la chambre (16) sur le substrat (24). Il y a aussi une méthode d'utilisation décrivant les étapes pour chasser l'oxygène de la chambre (16) à l'aide du gaz et la pulvérisation du revêtement au moyen du gaz sur le substrat (24) se trouvant dans la chambre, le gaz empêchant l'oxydation entre le substrat (24) et les couches de revêtement.

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