ANTIFRICTION COMPOSITE COATING

• Main Authors: SAVOSTINA T.V, IVANOV E.V, ALONTSEVA L.V
• Format: Patent
• Language: English; Russian
• Published: 27.08.2003
• Edition: 7
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; FUELS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LUBRICANTS; LUBRICATING COMPOSITIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TRANSPORTING; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION; WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OFELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKESTHE PLACE OF A TOOL

FIELD: antifriction materials. SUBSTANCE: invention can be used in slider bearings and other coupled parts operated under conditions of high temperatures, heavy loads, and under unfriendly atmospheric conditions. Coating consists of three layers. Layer adjacent to substrate has thickness 10-15 mcm and is made from molybdenum. Intermediate layer 1-3 mcm thick contains epoxide resin-based binder. Outside layer 15-50 mcm thick consists of solid grease containing molybdenum disulfide, graphite, and cadmium oxide. Molybdenum layer is made by depositing it onto substrate using electro-spark alloying technique. EFFECT: increased wear resistance, shear strength, and lowered couple fraction coefficient. 3 cl, 4 tbl