METHOD FOR HEAT TREATMENT OF WIRE AND DEVICE FOR ITS EMBODIMENT

FIELD: steel wire patenting. SUBSTANCE: method includes heating of wire to temperature over Ac3, holding at this temperature, intensive cooling to temperature over Mn which is effected by blowing with gas at the rate of 30-1000 C/s for time tau determined from relation tau=(0.8-4.5)d x Vg x 10Vr, wh...

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Hauptverfasser:	PETROV JURIJ MIKHAJLOVICH, ZINENKO ELENA NIKOLAEVNA, SHCHERBAK ALEKSANDR SEMENOVICH, KOROVAJNYJ SERGEJ FEDOROVICH, POKROVKOV NIKOLAJ IVANOVICH, PILJUSHENKO VITALIJ LAVRENT'EVICH, SIRITSA TAT'JANA GLEBOVNA, KOROVAJNYJ ALEKSANDR SERGEEVICH, BORISENKO JURIJ GLEBOVICH, SIKACHINA IGOR' VASIL'EVICH, BREKHT PAVEL LAVRENT'EVICH, PODOL'SKIJ BORIS GEORGIEVICH, PETROV ANDREJ JUR'EVICH, KUZ'MICHEV MIKHAIL VASIL'EVICH, GALENKO GALINA VALENTINOVNA, BARYSHEV EVGENIJ VLADIMIROVICH, ARTEMOV VLADIMIR VASIL'EVICH, SIKACHINA VALERIJ VASIL'EVICH, BARYSHEV ALEKSANDR VLADIMIROVICH, KUZ'MICHEV GENNADIJ MIKHAJLOVICH, GALENKO JURIJ SEMENOVICH, ARTEMOV SERGEJ VLADIMIROVICH, SHCHERBAK KONSTANTIN ALEKSANDROVICH
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	FIELD: steel wire patenting. SUBSTANCE: method includes heating of wire to temperature over Ac3, holding at this temperature, intensive cooling to temperature over Mn which is effected by blowing with gas at the rate of 30-1000 C/s for time tau determined from relation tau=(0.8-4.5)d x Vg x 10Vr, where d is wire diameter, mm; Vg is gas flow velocity, m/s. In this case, after intensive cooling down to 500-620 C holding is effected at this temperature and cooled finally. The device for embodiment of the method has heater, pressure chamber with nozzle, source of cooling medium and winding mechanism. Nozzle is made in the form of longitudinal slot located along axis of technological process. The device may be provided with cooling chamber, chamber of heat holding and chamber of reconditioning holding. EFFECT: higher efficiency. 21 cl, 14 dwg, 7 tblt