HARD-DRAWN WIRE

PROBLEM TO BE SOLVED: To provide a hard-drawn wire having setting resistance equivalent to that of an oil-tempered wire without conducting any patenting treatment or an oil tempering treatment. SOLUTION: The hard-drawn wire subjected to wire drawing comprises, by mass, 0.60-0.70% C, 1.00-2.50% Si, 0...

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Bibliographische Detailangaben
Hauptverfasser:	FUJINO YOSHIRO, MATSUMOTO TAKESHI, 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:	PROBLEM TO BE SOLVED: To provide a hard-drawn wire having setting resistance equivalent to that of an oil-tempered wire without conducting any patenting treatment or an oil tempering treatment. SOLUTION: The hard-drawn wire subjected to wire drawing comprises, by mass, 0.60-0.70% C, 1.00-2.50% Si, 0.20-1.00% Mn, 0.50-2.50% Cr, 0.05-0.50% V and the balance being Fe and unavoidable impurities. The tensile strength achieved after conducting a low-temperature annealing for 20 min at 400°C is 50 MPa larger than that achieved before the annealing. Since the tensile strength is improved even when stress-relief annealing is conducted after the hard-drawn wire is processed into a spring, a spring with a high setting resistance can be obtained. COPYRIGHT: (C)2011,JPO&INPIT