PROCESS OF TREATMENT OF SURFACE OF PART OF FRICTION UNIT AND DEVICE FOR ITS REALIZATION

FIELD: formation of antifriction, wear-, fretting- and heat-resistant electric spark coats on parts of friction units. SUBSTANCE: coat is deposited at no-load voltage of 10.0-200.0 V, short-circuit current 0.5-10.0 A, energy of pulse discharge 0.04-5.40 J, vibration frequency 50.0-100.0 Hz of electr...

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Bibliographische Detailangaben
Hauptverfasser:	BURUMKULOV F.KH, BELJAKOV A.V, KREMESHNYJ V.M, LEL'CHUK L.M
Format:	Patent
Sprache:	eng
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: formation of antifriction, wear-, fretting- and heat-resistant electric spark coats on parts of friction units. SUBSTANCE: coat is deposited at no-load voltage of 10.0-200.0 V, short-circuit current 0.5-10.0 A, energy of pulse discharge 0.04-5.40 J, vibration frequency 50.0-100.0 Hz of electrode tool, rotational speed of 200-700 s of electrode tool around its axis. Electrode tool is moved over surface of part in lateral and longitudinal directions with frequency of 2- 1000 Hz and amplitude of 1-100 min/cm in the course of specific time of 0.6-10.0 min/sq.cm. Coat is then polished with removal of 10-30% of thickness of deposited layer. Device has in addition mechanism of longitudinal translation of electrode tool over surface of part and unit automatically controlling clearance between electrode tool and part. EFFECT: increased thickness and improved quality of coat. 8 cl, 1 dwg, 4 tbl