LI Zhen1, 2,WANG Xiao-feng1,LIN Yang1,FEI Peng1,JIANG Mao-fa2
1. The Second Steelmaking Plant, Ansteel Co.， Ltd., Anshan 114014, Liaoning, China 2. School of Materials and Metallurgy, Northeast University, Shenyang 110016, Liaoning, China
Abstract：The production of high purity steel was a major task for the iron and steel enterprises in the 21st century. Decreasing the total oxygen content and the inclusion removal was the key technique to produce the high purity IF steel. A novel fine inclusion removal technology due to the dispersed in-situ phase induced by the composite ball explosive reaction was put forward. A composite ball with the function was designed and prepared using a laboratory model batch type balling disc (at 12r/min) and the composite ball was fed at the end of RH refining. The results indicate that feeding composite ball in RH furnace is a novel technology and the inclusion in the molten steel can be removed effectively. The treatment time is less than 10 minutes. Compared with conventional inclusion removal technology, the number of the oxide inclusion can be decreased to a lower level and the inclusion size becomes finer. Using this novel technology, the total oxygen in the as-cast slab can approach to 7×10-6 and the steel production cost for per ton can be reduced by 5-10 yuan.
李镇, ，王晓峰，林洋，费鹏，姜茂发. IF钢中细小夹杂物的控制[J]. 钢铁, 2011, 46(11): 26-31.
LI Zhen1, 2,WANG Xiao-feng1,LIN Yang1,FEI Peng1,JIANG Mao-fa2. Control of the Fine Inclusion in IF Molten Steel. Iron and Steel, 2011, 46(11): 26-31.
2011, Vol. 46 
