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分析了IF钢冶炼过程中渣对钢液中[Al]、[Ti]的氧化机理,在此基础上提出了IF钢加铝脱氧后全氧的预测模型.结果表明,熔渣中(FeO)、(MnO)对钢液的二次氧化存在两种方式.当氧化物在渣中的传质是反应限制性环节时,反应发生在渣/钢界面,生成的脱氧产物分布在渣/钢界面,此时渣的氧化性随时间呈指数下降;当脱氧元素在钢中传质是反应限制性环节时,反应发生在钢液内部.对某厂RH精炼渣的数据作回归得到RH加铝后渣的氧化性随时间指数变化的关系式.
The oxidation mechanism of [Al] and [Ti] in molten steel during the IF steel smelting process was analyzed, and the predictive model of total oxygen after IF deoxidation with aluminum was proposed on the basis of the above results. , (MnO) there are two ways to secondary oxidation of molten steel.When the mass transfer of oxide in the slag is the limiting part of the reaction, the reaction occurs in the slag / steel interface, the resulting deoxidation products are distributed in the slag / steel interface , When the oxidation of slag descends exponentially with time; when the deoxidation element in the steel mass transfer is the limiting part of the reaction, the reaction occurred in the molten steel inside. A factory RH refining slag data for regression obtained after RH plus aluminum Oxidation of slag as a function of time index.