FACILITY FOR APPLICATION OF COATING BY ELECTRIC EXPLOSION OF FOIL Russian patent published in 2010 - IPC C23C14/32 

FIELD: machine building.

SUBSTANCE: nozzle in facility corresponds to Laval nozzle with external face. An intermediate high-voltage electrode is made as a ring, on end surface of which there are secured metal poles in form of segments of a hollow cylinder symmetrically along generatrix. A mechanically sturdy di-electric cylinder has through apertures for installation of the central and intermediate high-voltage electrodes with profile and dimensions of the end similar to profile and dimensions of explosive foil. Foil corresponds to a trapezoid cup, a bottom part of which has through apertures with profile matching profile of the central electrode and poles of the intermediate electrode; the cup is installed on the end of the mechanically sturdy di-electric cylinder. The central high-voltage electrode is made as a rod with a through coaxial channel; the electrode is installed in the central through aperture of the mechanically sturdy di-electric cylinder. The external high-voltage electrode is made as a hollow cylinder with an internal face on the end, in the wall of the cylinder there are made through channels lengthwise and symmetrically to axis. The ring of the intermediate electrode is located on a periphery part of bottom and side surfaces of the trapezoid cup of exploding foil. The di-electric cylinder, explosive foil and electrodes are arranged on the end of the Laval nozzle. Surface of the external face of the Laval nozzle, the periphery part of side surface of the trapezoid cup of explosive foil and surface of the internal face of the external high-voltage electrode are conjugated. The through channels corresponding to channels of the external high-voltage electrode are made on the end of the Laval nozzle at angle to side surface. The through channels of the high-voltage electrodes are designed for gas supply into a cavity of the Laval nozzle.

EFFECT: upgraded quality of applied coating and increased efficiency of process.

3 dwg