Patent ID: 8192799
Filing Date: 2012-06-05
Classification: B05B,C23C

Abstract:
1. A method for gas dynamic cold spraying a substrate with a high temperature coating comprising the steps of (a) providing a substrate (b) providing a powder which has a melting temperature of more than about of 700° C. which powder is to be applied to the substrate; (c) providing an apparatus having a housing with an inlet for a gas and a mixing cavity disposed within the housing for mixing the powder and the gas in communication with the inlets, the cavity having an exit therefrom; (d) providing a nozzle assembly including a nozzle holder having a nozzle collar which includes a bore centrally disposed therethrough, and said nozzle assembly further including a cooling jacket including a cooling media, and a non-metallic nozzle having an exterior surface, a central longitudinal axis and a centrally disposed bore therethrough, (e) applying said powder to said substrate from the mixing cavity through the nozzle of the nozzle assembly.