Box type automatic cold spraying equipment

Abstract

The invention relates to box type automatic cold spraying equipment, and belongs to the technical field of cold spraying. According to the box type automatic cold spraying equipment provided by the invention, compressed air serves as spraying gas, a spraying base material is placed in a cold spraying box body so as to be sprayed at a constant speed, and undeposited powder is recycled through a powder recoverer. The box type automatic cold spraying equipment provided by the invention comprises an air compressor, a cold spraying unit and the powder recoverer. The cold spraying unit comprises a box body, an X-axis sliding rail, a Z-axis sliding rail, a Y-axis sliding rail, a spraying gun, a left rotor, a right rotor, a bottom sliding rail, a controller, a powder feeder and a powder recycling pipe. According to the box type automatic cold spraying equipment provided by the invention, the undeposited powder can be recycled, and the powder utilization rate is increased; through a multi-axis nozzle, the precision of spraying operation is improved; the compressed air is used as a medium, so that the cost is reduced, environmental pollution is reduced, and the equipment is not limited by operation sites; and the cold spraying box body is light and convenient to move.

Description

technical field [0001] The invention relates to a box-type automatic cold spraying equipment, which belongs to the technical field of cold spraying. Background technique [0002] Cold spraying technology is based on the principle of aerodynamics, using compressed gas at a certain temperature, usually nitrogen or helium, as the acceleration medium, accelerated through the Laval nozzle, so that the powder particles can exceed the speed of sound, generally 500m / s- 1200m / s, impacting the substrate, so that the particles are deposited on the surface of the workpiece through plastic rheology caused by "adiabatic shear instability" or through mechanical processes such as severe plastic deformation under extremely high stress and strain conditions. [0003] During the cold spraying process, the cold spraying equipment includes a powder feeder, a spray gun device and a workbench device. The air supply device is used as an equipped device to provide an accelerating medium for the powd...

AI Technical Summary

Problems solved by technology

[0004] However, the traditional cold spraying device is too heavy, and it is mostly used for fixed-site operations, and it is difficult to perform flexible spraying work in multiple sites. Although there are portable portable spray guns, it is difficult to obtain a coating with good performance and organization by relying on manual experience. , resulting in a greatly reduced coating performance and a low powder utilization rate; secondly, most of the fixed spraying devices in the laboratory can only be used for plane operations, and it is difficult to perform spraying operations on tubular materials; finally, the powder utilization rate in spraying operations is not high

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