METHOD OF TREATMENT OF STEEL ARTICLES

FIELD: chemico-thermal treatment of steel articles; surface hardening of articles. SUBSTANCE: proposed method includes diffusion saturation of articles in boron-containing mixture followed by hardening. Prior to hardening, parts are coated with suspension containing the following components, mass-%:...

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Bibliographische Detailangaben
Hauptverfasser:	KUZNETSOV A.P, ZIGANSHIN I.N, VOROB'EV V.N, USMANOV EH.M, CHAJKOV V.A, SEREBRJAKOV A.N
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	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 INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	FIELD: chemico-thermal treatment of steel articles; surface hardening of articles. SUBSTANCE: proposed method includes diffusion saturation of articles in boron-containing mixture followed by hardening. Prior to hardening, parts are coated with suspension containing the following components, mass-%: borax, 60-40; graphite, 40-60; water above 100 to paste state of suspension. EFFECT: reliable protection of boronized articles against oxidation and de-carbonization; additional diffusion hardening and avoidance of cracking in boride layers. 1 tbl