Method for smelting molybdenum-containing steel grade by using molybdenum oxide

• Main Authors: LIU XUHUI, CHEN JIE, DENG ZHIXUN, XIE JIANFU, QI JIANGHUA, DAI ZHICAI, LIU PENG, LIANG LIANG, DING SHENGQIANG, TAN DAJIN
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2024
• Subjects: CHEMISTRY; METALLURGY; METALLURGY OF IRON; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS

The invention discloses a method for smelting a molybdenum-containing steel grade by using molybdenum oxide, which comprises the following steps: S1, setting a target value of molybdenum content in the molybdenum-containing steel grade, and marking as a; s2, converter blowing; s3, molybdenum oxide is added to the bottom of the steel ladle; s4, converter tapping; s5, refining in an LF furnace; s6, the molybdenum content in the refined molten steel is adjusted; and S7, the molybdenum-containing steel grade is obtained through continuous casting. The invention provides a method for smelting a molybdenum-containing steel grade by using molybdenum oxide. The molybdenum content in the prepared molybdenum-containing steel grade can reach a preset target value; and before converter tapping, molybdenum oxide is added to the bottom of the steel ladle, then the converter molten steel is put into the steel ladle, then the slag splashing phenomenon caused by directly putting molybdenum oxide into the converter molten stee