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A method for applying powder by means of a powder spray gun and powder spray gun for carrying out the method
A method for applying powder by means of a powder spray gun and powder spray gun for carrying out the method
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机译:通过粉末喷枪施加粉末的方法以及用于执行该方法的粉末喷枪
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摘要
The aim of the invention is to provide a method for applying powder with a powder spray gun and a powder spray gun, in order to achieve a uniform distribution of the powder in the airflow at low flow speed of the powder-air mixture. A uniform powder coating with a high penetration capability even into recesses in the workpiece to be treated shall be rendered possible thereby. Finally, a high degree of separation of the powder shall be achieved. The strand delivery of a powder-air mixture (16) is homogenised in a mixing chamber (4) inside a nozzle body (1) and converted into an airborne delivery. A nozzle cone (5) and distributer cone (13) lead to a further expansion of the powder-air mixture (16). Jet-shaping arrangements (19) on a displaceable sleeve (18) shape the powder-air mixture (16) following exit from the nozzle limiting edge (6). Displacement of the sleeve (18) allows an infinitely variable adjustment of the shape of the powder-air mixture (16), e.g. between a round jet and a flat jet. Conveying air (17), which is supplied via an annular nozzle (7), increases the projection range of the powder-air mixture (16).
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