Piston useful for an internal combustion engine, preferably for gasoline engine, comprises ring groove, which is designed with infused reinforcement comprising metal infiltrated, preferably steel- and/or gray cast-infiltrated ceramic

摘要

Piston comprises an ring groove, which is designed with an infused reinforcement comprising metal infiltrated, preferably steel- and/or gray cast-infiltrated ceramic, preferably carbon-alumina. An independent claim is also included for producing the piston comprising producing castable ring groove reinforcement for the piston using a centrifugal casting process, placing a ring-shaped porous ceramic body (18) to its hollow space in rotation, introducing liquid metal (14), preferably liquid steel or cast iron in these hollow space, which is penetrated into the ceramic body (18) and is infiltrated, terminating the infiltrated ceramic body, after solidification of the metal, obtaining a ring using the infiltrated ceramic body, pouring the ring into the piston, and using as a reinforcing insert, where the ring groove is formed in the ring, which is obtained from the ceramic body, and the ring groove is suitable for receiving a piston ring.