The working process of supersonic spraying device

       

The supersonic spraying device uses kerosene as fuel, oxygen and compressed air as combustion accelerant, and the control device delivers kerosene and combustion accelerant to the spray gun at a certain pressure and flow rate

The supersonic spraying device uses kerosene as fuel, and oxygen and compressed air as combustion accelerant.

 The control device delivers kerosene and oxidizing agent to the spray gun at a certain pressure and flow rate, and is atomized and mixed into a liquid mist by a high-performance atomizing nozzle. In the combustion chamber of the spray gun, the liquid mist is ignited and burned by the spark plug to form high temperature and high pressure gas, which is accelerated to supersonic speed by the Laval spray gun. The powder feeding system sends the spray powder from the low pressure area of the Laval spray gun nozzle into the supersonic jet, and after the jet is heated and accelerated, it is sprayed from the spray gun, and sprayed at a high speed to the surface of the workpiece to deposit and form a coating. Since the multifunctional supersonic spraying technology can use oxygen and compressed air as two combustion accelerants, and has the functions of HVOF and HVAF at the same time, the speed and temperature of the flame can be continuously adjusted within a large range.