METHOD FOR HOT ROLLING OF STEEL STRIPS WITH CARBONITRIDE REINFORCEMENT

FIELD: manufacture of rolled products. SUBSTANCE: method involves heating slabs to temperature of 1.100-1.250 C and holding for 3-5 h; providing multiple-pass rough rolling at total reduction of at least 80% and final temperature of 1.020-1.090 C, multiple-pass final rolling at total reduction of at...

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Bibliographische Detailangaben
Hauptverfasser:	LATYSHEVA T.O, KISELEVA E.M, GOLOVANOV A.V, TKACHENKO N.A, TRAJNO A.I, LAMUKHIN A.M, D'JAKONOVA V.S, POPOV E.S, ROSLJAKOVA N.E
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS 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 TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Zusammenfassung:	FIELD: manufacture of rolled products. SUBSTANCE: method involves heating slabs to temperature of 1.100-1.250 C and holding for 3-5 h; providing multiple-pass rough rolling at total reduction of at least 80% and final temperature of 1.020-1.090 C, multiple-pass final rolling at total reduction of at least 70% and final temperature of 820-870 C; cooling strips with water to temperature of 550-620 C and winding strips into roll. Method is used for rolling strips of low-alloy steels on continuous wide-strip mill. EFFECT: increased efficiency, provision for stable mechanical properties and increased yield. 2 tbl, 1 ex