| 摘要 |
<p>In a method of applying an electrically conductive coating to the surface of a plastics material body, metallic particles are delivered to the body surface with sufficient momentum to embed the particles in the surface to create a conductive layer thereon. The particles will initially be embedded in the plastics surface, but as the bombardment continues the particles will impact on the surface of one or more particles already embedded. The momentum imparted to the particles is sufficient to ensure that at least some of these later delivered particles will bond with particles already in place, either by cold forging or pressure welding, to create the conductive layer. Apparatus for carrying out the above method uses Venturi nozzles to accelerate compressed air and create a stream which entrains the particles and drives them to the body surface.</p> |
