Aluminum-silicon alloy liner for cylinder block of power unit in heat engine of car, has cylindrical body including layer formed on interior surface of body and another layer that is formed by polymeric material and carried on former layer

摘要

The liner (10) has a cylindrical body (11) made of aluminum-silicon alloy and including a layer (13) that is formed directly on an interior surface of the body, and another layer (15), which is formed by a polymeric material and carried out on the former layer for allowing protection of the former layer. The former layer is made of steel or metal alloy containing iron, and the latter layer is made of epoxy resin or polyester resin and thermoelastic resin. An external coating layer of the body is realized in an aluminum alloy. An independent claim is also included for a method for realizing a liner.