METHOD OF PREPARING COATINGS SUITABLE FOR PROTECTION OF STEEL PARTS AGAINST CORROSION

mechanical engineering and corrosion protection. SUBSTANCE: to form composite coating of steel part, the latter is degreased, activated by acid solution, subjected to deposition of zinc coating in alkaline zincate electrolyte containing tin complex compound with polybasic organic acids, phosphatatio...

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Hauptverfasser:	PLASKEEV E.V, LOGACHEVA Z.V, GUBENKOVA O.A, ZHIRNOV A.D, PRIBYLOVA L.I, MAMONTOVA N.N, OVSJANNIKOVA L.V
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR 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 ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	mechanical engineering and corrosion protection. SUBSTANCE: to form composite coating of steel part, the latter is degreased, activated by acid solution, subjected to deposition of zinc coating in alkaline zincate electrolyte containing tin complex compound with polybasic organic acids, phosphatation in solution containing nitrates, zinc, barium, zinc monophosphate, and a surfactant (mixture of sodium salts of sulfate esters of secondary alcohols containing 6-16 carbon atoms), and treatment with chromate solution. EFFECT: improved protection properties and increased corrosion resistance compared to zinc coating. 3 cl, 2 tbl