Patent ID: 8367963
Filing Date: 2013-02-05
Classification: B05B,B23K,C23C,H05H,Y02T

Abstract:
1. A microplasma spray apparatus for coating at least a portion of a turbine vane in a gas turbine engine comprising: a microplasma gun including an anode, a cathode, and an arc generator for generating an electric arc between the anode and cathode; a nozzle for emitting arc gas into the electric arc, the electric arc operable for ionizing the gas to create a plasma gas stream; and a powder injector for injecting powdered material into the plasma gas stream and coating a localized area of the turbine vane, the material coating being applied without masking the turbine vane, wherein said cathode includes an electrode extending therefrom and disposed through an aperture of said nozzle of said microplasma gun, and said anode is disposed opposite said cathode within an anode holder mounted to an exterior surface of said microplasma gun.