Beschichtungsverfahren und ein nach dem Beschichtungsverfahren hergestellter Kolben

摘要

Process for coating the contact surface of internal combustion engine pistons comprises forming sealed recesses in the surface of the piston so that a capillary effect is adjusted with respect to the properties of the coating in the flowable state, and the coating is able to penetrate into the recesses. An Independent claim is also included for a piston (1) having an external surface (6) with a coating (5) and recesses (3) with an extension (7) opposite a wall section (9) facing the surface.