CaO基熔剂对钢液二次精炼脱磷速度的研究  

Study on dephosphorization rate of liquid steel in secondary refining process by CaO -based fluxes

作　　者：郭上型[1] 董元篪[1] 彭明[1] 

机构地区：[1]安徽工业大学冶金与材料学院,安徽马鞍山243002

出　　处：《安徽工业大学学报（自然科学版）》2003年第3期255-258,共4页Journal of Anhui University of Technology（Natural Science）

基　　金：安徽省教育厅自然科学基金资助项目(2000j1189zd)

摘　　要：利用CaO-Fe_2O_3-CaF_2系熔剂,对磷质量分数≤0.050%的钢液进行二次精炼脱磷处理,测定熔剂中添加BaO,Al_2O_3时对钢液脱磷速度的影响关系。实验得到CaO基熔剂对钢液二次精炼处理时的脱磷反应速度常数k值以及磷在熔渣中传质系数D/δ值。结果表明:添加剂BaO具有增大脱磷反应速度的作用,而AlO对脱磷反应速度影响不大。The rate of dephosphorization of liq uid steel in the secondary refining p rocess was investigated by using CaO -Fe 2 O 3 -CaF 2 fluxes.The influence of BaO,Al 2 O 3 as additives of the CaO -based fluxes on the De -P rate was discussed.The value of De -P reaction rate constant and mass -transfe r coefficient of phosphorus from sla g -liquid steel interface to slag phase were measured.The results indicate d that the De -P rate is increased with the addition of BaO,but the addition of A l 2 O 3 have a little influence on increment of De -P rate.

关 键 词：钢液 二次精炼 CAO基熔剂 脱磷速度 

分 类 号：TF704.4[冶金工程—钢铁冶金]