Construction steel wire rod containing Ti microalloy and a ladle furnace (LF) production method thereof

• Main Authors: DENG TONGWU, LEI XIUHUA, LIU MING, WANG XIJIANG
• Format: Patent
• Language: Chinese; English
• Published: 24.04.2018
• Subjects: ALLOYS; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS; METALLURGY; METALLURGY OF IRON; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention belongs to the field of ferrous metallurgy, and particularly relates to a construction steel wire rod containing Ti microalloy and a ladle furnace (LF) production method thereof. Aimingat solving the problems that vanadium nitride adopted for preparing nitrogen-contained alloy steel in the prior art is low in nitrogen content and small in variety, the invention provides the construction steel wire rod containing the Ti microalloy and the LF production method thereof. The steel wire rod comprises, by weight, 0.15-0.30% of C, 0.30-1.00% of Si, 0.60-1.30% of Mn, 0.0060-0.0180% of N, 0-0.040% of P, 0-0.040% of S, 0.010-0.050% of Ti, and the balance Fe and inevitable impurities. The preparation method is characterized in that N-contained core-spun wires are fed after LF refining,and N is adjusted to the proper level. The method is easy to implement, the nitrogen yield is high and stable, the production cost can be effectively reduced, and the method is worthy of applicationand popularization. 本发明属于钢铁