COATING FOR A PISTON RING

A piston ring and method of forming includes a base portion formed of a metallic material, an outer contact surface and an inner contact surface extending between a first face and a second face that is opposite the first face of the piston ring, a chromium coating layer on the second face, the outer...

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Bibliographische Detailangaben
Hauptverfasser:	Viegas Rosa Rezende, Luiz Felipe, Iychodianda Kushalappa, Nikhil Nachappa, Mendes de Araujo, Fabio, Muniz De Toledo, Samuel Jose
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING 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 CYLINDERS DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MECHANICAL ENGINEERING METALLURGY PISTONS SEALINGS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A piston ring and method of forming includes a base portion formed of a metallic material, an outer contact surface and an inner contact surface extending between a first face and a second face that is opposite the first face of the piston ring, a chromium coating layer on the second face, the outer contact surface, and the inner contact surface, a layer of diamond-like carbon (DLC) disposed over the chromium coating layer on the outer contact surface, and a phosphate layer on a first face.