METHOD FOR RESTORING MACHINE PARTS SURFACE FLAWS

FIELD: metallurgy, namely methods for repairing machine parts surface flaws, possibly restoration of machine parts of high alloy refractory steels and alloys having operation flaws such as air holes, dents, local worn zones of rubbing surfaces. ^ SUBSTANCE: method comprises steps of filling dressed...

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Hauptverfasser:	RYL'NIKOV VITALIJ SERGEEVICH, TIKHOMIROV ALEKSANDR EMEL'JANOVICH, BABICH IVAN IGNAT'EVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLADDING OR PLATING BY SOLDERING OR WELDING 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 COMBINED OPERATIONS CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR METALLURGY OTHER WORKING OF METAL PERFORMING OPERATIONS SOLDERING OR UNSOLDERING SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TRANSPORTING UNIVERSAL MACHINE TOOLS WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	FIELD: metallurgy, namely methods for repairing machine parts surface flaws, possibly restoration of machine parts of high alloy refractory steels and alloys having operation flaws such as air holes, dents, local worn zones of rubbing surfaces. ^ SUBSTANCE: method comprises steps of filling dressed flaw sites with melt powder material containing solder and filler at deposition of said material by means of argon micro-plasma; sealing applied material by depositing onto it refractory material layer with thickness 0.2 - 0.3 mm at temperature exceeding at least by 100C melting temperature of filler; depositing aluminum oxide layer with thickness 0.1 - 02 mm as barrier layer preventing tinning of repaired part surface with solder; then performing high-temperature soldering in vacuum and also in gas-shield atmosphere; mechanically working part. Invention allows receive high quality soldered joints without changing shape of deposited material in all spatial positions of part during restoration at porosity of soldered joints no more than 1.5%. ^ EFFECT: possibility for receiving high quality soldered joints. ^ 5 cl, 1 ex