Discussion on Calcium Treatment Technology of Clean Steel Refining
This study delves into the application effects of calcium treatment in the production of clean steel and analyzes the existing problems and potential solutions.The research finds that although calcium treatment helps to control the morphology of inclusions and improve the castability of molten steel,it can affect the removal efficiency of inclusions,increase larger-sized inclusions,and even lead to secondary oxidation of molten steel and refractory material wear.Therefore,for cases without special requirements for inclusion modification and castability issues,it is advisable to consider carefully whether to perform calcium treatment.For situations where calcium treatment is indeed necessary,it is recommended to execute after refining and to control the appropriate addition amount.Finally,combining industrial experiments and practical experience,this paper proposes a new strategy for enhancing the cleanliness of molten steel,recommending targeting the minimum calcium addition amount to ensure the efficiency and cleanliness of calcium treatment technology.This research not only enriches the theoretical foundation of calcium treatment refining for clean steel but also provides feasible technical references for actual production.
clean steelcalcium treatment technologyinclusion modificationthermodynamic dataprecise control
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