B - Operations – Transporting – 05 – D
Patent
B - Operations, Transporting
05
D
B05D 1/12 (2006.01) B05B 17/06 (2006.01)
Patent
CA 2057448
ABSTRACT A method according to the invention for applying coatings resides in the fact that a powder with a particle size from 1 to 50 µm made of a material select- ed from the group consisting of medals, alloys, their mechanical mixtures or insulating materials is intro- duced in an amount for ensuring a density of flow rate from 0.05 to 17 g/s?cm2 into a gas flow for forming a gas and powder mixture which is directed towards the surface of a product, a supersonic velocity being imparted to the gas flow , and a supersonic jet of a predetermined profile being formed which ensure a ve- locity of powder in the gas and powder mixture from 300 to 1200 m/s. An apparatus for carrying out the method has a powder particle flow controller mounted in a spaced relation to a cylindrical surface of a drum to ensure the desired flow rate of the powder, an in- termediate nozzle adjacent to a mixing chamber commu- nicating through its inlet pipe with a means for supply- ing a compressed gas,a deflector mounted on a hopper bottom and engaging the cylindrical periphery of the drum in which depressions are made along a helical line, the drum extending horizontally in such a manner that one portion of its cylindrical periphery forms the bottom of the hopper and the other portion forms a wall of the mixing chamber, a nozzle for accelerating the powder particles being in the form of a super- sonic nozzle and having a profiled passage.
Alkhimov Anatoly P.
Kosarev Vladimir F.
Nesterovich Nikolai I.
Papyrin Anatoly N.
Shushpanov Mikhail M.
Anatoly Nikiforovich Papyrin
Marks & Clerk
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