Gas-dynamic spraying method for applying a coating
AssigneeAnatoly Nikiforovich Papyrin
InventorsAnatoly P. Alkhimov, Anatoly N. Papyrin, Vladimir F. Kosarev, Nikolai I. Nesterovich, Mikhail M. Shushpanov
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Abstract
A cold gas-dynamic spraying method for applying a coating to an article introduces into a gas particles of a powder of a metal, alloy, polymer or mechanical mixture of a metal and an alloy, the particles having a particle size of from about 1 to about 50 microns. The gas and particles are formed into a supersonic jet having a temperature considerably below a fusing temperature of the powder material and a velocity of from about 300 to about 1,200 m/sec. The jet is directed against an article of a metal, alloy or dielectric, thereby coating the article with the particles.
Claims6
A gas-dynamic spraying method for applying a coating to an article, the method comprising:
- introducing into a gas particles of a powder of at least one first material selected from the group consisting of a metal, alloy, polymer and mechanical mixture of a metal and an alloy, the particles having a particle size of from about 1 to 50 microns;
- forming the gas and particles into a supersonic jet having a temperature sufficiently low to prevent thermal softening of the first material and a velocity of from about 300 to about 1,200 m/sec.;
- and
- directing the jet against an article of a second material selected from the group consisting of a metal, alloy and dielectric, thereby coating the article with the particles.
Dependencies are inferred from the claim text.