OIL-TEMPERED WIRE, AND METHOD FOR MANUFACTURING OIL-TEMPERED WIRE

PROBLEM TO BE SOLVED: To provide an oil-tempered wire which shows well-balanced fatigue strength and toughness even when having been nitrided. SOLUTION: This oil-tempered wire comprises, by mass%, 0.60-0.70% C, 1.0-2.5% Si, 0.20-0.80% Mn, 1.0-2.5% Cr, 0.05-0.50% V, and the balance Fe with unavoidabl...

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Hauptverfasser:	SHIMIZU KENICHI, FUJINO YOSHIRO, IZUMIDA HIROSHI, NAGAI TATSUJI, MURAI TERUYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS 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 FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an oil-tempered wire which shows well-balanced fatigue strength and toughness even when having been nitrided. SOLUTION: This oil-tempered wire comprises, by mass%, 0.60-0.70% C, 1.0-2.5% Si, 0.20-0.80% Mn, 1.0-2.5% Cr, 0.05-0.50% V, and the balance Fe with unavoidable impurities; and forms such cementite-based carbides as to contain 2 to 6 wt.% Cr therein by concentration after having been heat-treated in an equivalent condition to nitriding treatment (heated at 420 to 480°C for 2 to 4 hours) after having been quenched and tempered. COPYRIGHT: (C)2009,JPO&INPIT