Optimization Experiment of LF External Refining Process
In order to remove harmful impurities during the refining process outside the furnace,improve the purity of molten steel and the quality of steel,an optimization plan for the LF refining process outside the furnace is proposed.Based on the research background of a certain steel plant,process experiments and analysis were conducted on steel production.Through the study of the LF refining process for bearing steel and high-end gear steel,suitable process parameters were determined.The aluminum feeding amount after VD furnace was controlled according to the requirement of acid soluble aluminum content in finished steel of 0.020％～0.025％.The total oxygen mass distribution and bearing steel inclusions were used as evaluation indicators to compare and analyze the process schemes before and after improvement.The comprehensive application effect of LF refining optimization process was verified to be better,which has guiding significance for the improvement of steel smelting technology.
LF refining outside the furnaceprocess optimizationexperimenttemperature control
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