Abstract: Prior to the thermal coating of a component generally a pretreatment of the surface to be coated is necessary, for example, a roughening by means of sand or water blasting. The problem with this type of pretreatment or coating is over-spraying, which also modifies the surfaces, which are not intended to be coated. As remedy for this, masks have been proposed which are placed in front of the internal surface prior to the pretreatment. The task of the present invention is comprised of providing an alternative to the conventional mask and partial coating processes. The task is solved in that the mask is not produced independent from the component, but rather together therewith. This occurs in the manner, that the component is produced with a local over dimensioning, which at least partially masks the areas to be not pretreated and/or not to be coated, however, allows access to the internal surface to be pretreated and/or thermally coated.

Abstract: Slide layers, in bearing shells or exhaust gas turbo chargers of internal combustion engines, formed by a metal matrix with embedded polymer or embedded polymer and ceramic, as well as methods for production for this type of slide layers by means of a thermal spray process, in particular arc wire spray processes (LDS) wherein the substantial proportion of the metallic spray material is introduced prior to the spray nozzle, and the polymer spray material in powder or wire form is introduced into the spray stream subsequent to the spray nozzle using a supply device.