MATERIAL FOR SURFACE LAYER OF VALVE STEM ESPECIALLY FOR INTERNAL COMBUSTION ENGINES

The solution concerns the field of materials and solves the problem of decrease of valve tendency, especially with combustion engines, to seize during their movement in the guide and problem of their resistance against corrosion from exhaust gases. The gist of the solution lies in the fact that the...

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Hauptverfasser:	HOLPUCH VLADIMIR,CS, ZAMYSLICKY LUDEK ,CS
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BLASTING CHEMISTRY CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES ENGINE PLANTS IN GENERAL FERROUS OR NON-FERROUS ALLOYS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY STEAM ENGINES TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	The solution concerns the field of materials and solves the problem of decrease of valve tendency, especially with combustion engines, to seize during their movement in the guide and problem of their resistance against corrosion from exhaust gases. The gist of the solution lies in the fact that the material that forms the surface layer of the valve shank is made up of nickel and carbon in the dispersion form, while the nickel content is from 95 to 99.9 percent by weight and the carbon content is from 0.1 to 5 percent by weight. The material according to the solution can be used with the valves that are intended to be used for combustion engines, possibly compressors and other machines.