Single torch-type plasma spray coating method and apparatus ther

Details Single torch-type plasma spray coating method and apparatus ther Single torch-type plasma spray coating method and apparatus ther

1986-05-12

1988-05-03

Newsome, John H.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

219121PM, 239 81, 427 34, B05B 502

Patent

active

047412860

ABSTRACT:
A single torch-type plasma spray coating method wherein a gas flow in a nozzle of a plasma torch is made to be a laminer flow, thereby the plasma flame jetted from the end of the plasma torch is modified to be a laminer flow flame, the plasma is separated from the plasma flame which contains liquid droplets of molten spray coating material and runs toward an object to be worked by means for separating plasma arranged immediately before said object to be worked, and remaining droplets of molten spray coating material impinges on said object to form a coating film thereon, and an apparatus therefor.

REFERENCES:
patent: 3628079 (1971-12-01), Dobbs et al.
patent: 3900639 (1975-08-01), Lauterbach
patent: 4024373 (1977-05-01), Bykhovsky et al.
patent: 4032744 (1977-06-01), Coucher
patent: 4146654 (1979-03-01), Guyonnet
patent: 4596918 (1986-06-01), Ponghis

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