Bearing element and process for its production

An intermediate layer and a hardening film are formed on the outer circumferential surface of a piston ring by an ion plating process. The intermediate layer is composed of at least one of the materials such as Cr, Cr2N and CrN. The hardening film is composed of a hard-coating material containing fr...

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Bibliographische Detailangaben
Hauptverfasser:	TANAKA, SHOJI, SHIOJIRI, NAGANO, JP, TAMAGAKI, HIROSHI, KOBE, HYOGO, JP, YAMASHITA, NOBUYUKI, SHIOJIRI, NAGANO, JP, MIYAZAKI, SATOMICHI, OKAYA, NAGANO, JP, FUKUTOME, HIROTO, OKAYA, NAGANO, JP
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES 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 COMBUSTION ENGINES CYLINDERS CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES DIFFUSION TREATMENT OF METALLIC MATERIAL ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS 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:	An intermediate layer and a hardening film are formed on the outer circumferential surface of a piston ring by an ion plating process. The intermediate layer is composed of at least one of the materials such as Cr, Cr2N and CrN. The hardening film is composed of a hard-coating material containing from 3 to 20% by weight of oxygen in a liquid solution state in a crystal structure of CrN and having a Vickers hardness of from 1600 to 2200.