Process for the production of material in layers or parts of material layers with a layer of metal friction or sliding.Upon formation of layers by means of metalizacao of at least a metallic material on a metallic substrate.

摘要

The invention relates to a process for the production of laminated materials in strip form or as strip portions or plates for the manufacture of friction or sliding elements, in particular friction bearings, friction bearing bushes or thrust discs for internal combustion engines, wherein a metal bearing material layer as a friction layer and possibly an intermediate layer or bonding layer is characterised by chemically reactive vapour depositing on the surface of the metal backing member, from one or more melting crucibles, inter alia by means of an electron beam, in a residual gas atmosphere, having a pressure of 10-2-10-3mbar and including at least one constituent which chemically reacts with at least one of the constituents of the material to be vapour deposited, wherein the material is dispersion- hardened simultaneously with the vapour deposit operation to form at least one chemical compound which is harder than the material to be vapour deposited. The residual gas atmosphere may be oxygen, wet oxygen, water vapour, nitrogen or air. The material to be vapour deposited suitable for forming oxides and nitrides thereof may be aluminium, cadmium, tin, zinc, nickel or copper. The process according to the invention enjoys particular significance in regard to the vapour deposit of dispersion alloys in order in that way to form dispersion-hardened layers of dispersion alloy, for example aluminium-lead dispersion alloy or lead-tin-bronze dispersion alloy.