Analysis of Controlling Oxygen Activity in IF Steel at Blowing End-point of BOF Steelmaking
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摘要: 转炉冶炼终点钢水中的氧是产生钢中夹杂物的根源，对钢的洁净度有着不利的影响。为了加强转炉终点氧含量的控制水平，提高产品的内部质量。通过对某厂转炉冶炼IF钢现场试验研究，分析了转炉终点碳氧含量的分布状态，研究了碳含量、炉龄、终点温度和氧耗量等因素对终点氧含量的影响规律，并提出了降低转炉终点氧含量的技术措施。Abstract: Oxygen activity at blowing end-point of BOF steelmaking is the main source of producing non-metallic inclusions and has bad influence on steel cleanliness.In order to increase the control of oxygen content at blowing end-point of BOF steelmaking and improve products' inner quality, experiments are done during a BOF steelmaking to produce IF steel in a plant.The content of carbon and oxygen at blowing end-point is analyzed, the effect of content of carbon, BOF age, end-point temperature and consumption of oxygen on the content of oxygen at blowing end-point are studied and decreasing measurements of end-point oxygen content are put forward.
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Key words:
- IF steel /
- BOF /
- end-point oxygen content /
- end-point carbon content /
- BOF age
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