Martensite high-wear-resistance steel plate smelting and continuous casting manufacturing method

• Main Authors: JIN JIANFENG, YAN QIANGJUN, WANG QI, WANG ZHAODONG, JIANG ZAIWEI, DENG XIANGTAO
• Format: Patent
• Language: Chinese; English
• Published: 22.04.2022
• Subjects: ALLOYS; CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; CHEMISTRY; FERROUS OR NON-FERROUS ALLOYS; METALLURGY; METALLURGY OF IRON; PERFORMING OPERATIONS; POWDER METALLURGY; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TRANSPORTING; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention relates to a smelting and continuous casting manufacturing method of a martensite high-wear-resistance steel plate, and belongs to the technical field of steel smelting and continuous casting. The method comprises the steps of converter smelting, external LF furnace refining, RH furnace refining, protective casting and casting blank slow cooling. Wherein low-nitrogen raw and auxiliary materials are selected in the smelting process, components and harmful gases such as O, N and H in the refining process are controlled, and special casting powder is used in the continuous casting process. According to the method, the yield of the Ti element is increased, generation of large-particle inclusions such as TiN in the steel plate is reduced, and the tendency that a casting blank and the steel plate are prone to cracking during machining is reduced; smooth continuous casting of the TiC particle enhanced martensitic wear-resistant steel is achieved, the problem of casting powder caking or cold steel cakin