COIL SPRING EXCELLENT IN FATIGUE RESISTANCE AND ITS PRODUCTION

PURPOSE:To produce a coil spring having superior fatigue resistance and high hardness by subjecting a steel wire having a specific composition consisting of C, Ni, Si, Mn, V, Mo, Cr, and Fe to spring forming at room temp. and then allowing martensitic transformation to occur. CONSTITUTION:This sprin...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAO NORITO, MURAI TERUYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BLASTING CHEMISTRY ENGINEERING ELEMENTS AND UNITS FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To produce a coil spring having superior fatigue resistance and high hardness by subjecting a steel wire having a specific composition consisting of C, Ni, Si, Mn, V, Mo, Cr, and Fe to spring forming at room temp. and then allowing martensitic transformation to occur. CONSTITUTION:This spring is a cold forming coil spring which has a composition consisting of, by weight, 0.5-1.5% C, 5-25% Ni, 1.0-3.0% Si, 0.5-3.0% Mn, further one or more kinds among