PROCESS FOR PRODUCING DIAMOND-CONTAINING COATING

Diamond-contg. coating for use in machining metals is produced by applying a mixture contg. diamond powder to a metal surface substrate and then sintering it at a pressure of 10-50 MPa under the action of an electrical pulsed current with a density of 0.3-1.5 kA square mm and a pulse ratio of 0.25-1...

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Hauptverfasser:	YARKOVICH,ALEXANDR M.,SU, BOCHAROV,ANATOLY M.,SU, ZHORNIK,VIKTOR I.,SU, BELOTSERKOVSKY,MARAT A.,SU, SAVCHENKOV,NIKOLAI A.,SU, DOROZHKIN,NIL N.,SU, RAZUMOVSKY,ALEXEI G.,SU, VERESCHAGIN,VITALI A.,SU
Format:	Patent
Sprache:	eng
Schlagworte:	CASTING CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY 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 GRINDING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POLISHING POWDER METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THEIR RELEVANT APPARATUS TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	Diamond-contg. coating for use in machining metals is produced by applying a mixture contg. diamond powder to a metal surface substrate and then sintering it at a pressure of 10-50 MPa under the action of an electrical pulsed current with a density of 0.3-1.5 kA square mm and a pulse ratio of 0.25-1.0. The mixture applied, pref. by thermal spraying, to the metal is electrically conductive, with a specific electrical resistance of 0.05.10 power(-6) to 0.3.10 power(-3) ohm.m and compsn. of (vol. %) 24-60 diamond powder and up to 100 base metal with a specific electrical resistance of (0.014-1.7).10 power(-6).m.