Analysis of Controlling Oxygen Activity in IF Steel at Blowing End-point of BOF Steelmaking

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.