Improvement of integrated technology for restoring surfaces of steel and iron parts

Abstract

There have been proposed new technical solutions including operations of applying coatings onto worn surfaces of steel and cast iron parts by electro-erosive alloying method (EEA). In this case, the EEA coatings are applied in two stages. At the first stage, there is applied a layer on the conditions providing the greatest thickness and continuity of the surfaces obtained. At the second stage, the operation is performed by the same electrode and on the conditions of the discharge energy and productivity corresponding thereto, which provide for the formation of the surface having a roughness value being about 2-4 times higher than that at the previous stage. At least one layer of a metal polymer material (MPM) is applied on the surface formed by the above said EEA method, with this layer having been reinforced by at least one wire reinforcement layer before polymerization.