Fluid sprinkling – spraying – and diffusing – Processes – Including heating or cooling
Patent
1993-01-21
1995-04-11
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Processes
Including heating or cooling
239 8, 239 79, B05B 720
Patent
active
054050855
ABSTRACT:
A method and apparatus for thermal spraying a coating onto a substrate is provided wherein a coating material is transported within a high energy flow stream. A high energy flow stream, which includes the coating material, is generated within the thermal spray gun. A flow nozzle having a barrel directs the high energy flow stream towards the substrate. The flow nozzle includes a thermal transfer member for absorbing a heat flow from a first portion of the high energy flow stream, and transferring the heat flow back to a second portion of the high energy flow stream. Additionally, the thermal member provides a thermal barrier for retaining heat within the high energy flow stream by absorbing and retaining sufficient heat within the thermal flow nozzle so that the temperature gradient between the high energy flow stream and the flow nozzle is reduced, which reduces the amount of heat transferred therebetween. Further, the flow nozzle thermal transfer member may be replaced with alternative thermal transfer members to allow tuning of the thermal spray gun for use with a wide variety of coating materials.
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Bradley James E.
Handley Mark W.
Kashnikow Andres
Trainor Christopher G.
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