【作者】 付贵勤； 鞠洪星； 薛逊； 孙健； 王彩艳； 朱苗勇；

【Author】 FU Gui-qin~1 JU Hong-xing~1 XUE Xun~2 SUN Jian~1 WANG Cai-yan~1 ZHU Miao-yong~1 (1.School of Materials and Metallurgy,Northeastern University,Shenyang,Liaoning 110004,China; 2.Panzhihua Iron & Steel Research Institute,Pangang Group,Panzhihua,Sichuan 617000,China)

【机构】 东北大学材料与冶金学院； 攀枝花钢铁集团攀枝花钢铁研究院；

【摘要】 用分析纯化学试剂配制酸性钒钛渣,并测定其熔融态粘度.研究了 TiO₂,FeO,V₂O₅含量以及碱度变化对酸性钒钛渣粘度及熔化性温度的影响,并用 SEM 分析了缓冷后熔渣的结构.实验结果表明,当 TiO₂含量在30%～40%, V₂O₅含量在1.4%～2.4%,FeO 含量在4%～14%之间,碱度在0.2～0.3变化,1510℃时粘度≤0.2 Pa·s,熔化性温度在 1 436～1 505℃.1 510℃时熔渣的粘度随 TiO₂,FeO 含量及碱度的增加而减小;熔渣的熔化性温度随 TiO₂含量增加而增加,随碱度的增加先减小后增加,随 FeO 含量增加而减小;SEM 结果表明,当 TiO₂含量增加时,炉渣矿相由规则的细长条形向短粗无序转变.更多还原

【Abstract】 The viscosity and melting temperature of acidic vanadium-titanium-containing slags prepared by analytical reagents were measured to study the effects of TiO₂,FeO and V₂O₅ contents on their viscosity and melting temperature.Meanwhile,the microstructures of cooling slags were analyzed by SEM.The results showed that slags containing 30%～40% TiO₂,1.4%～2.4% V₂O₅,4%～14% FeO,and with CaO/SiO₂ 0.2～0.3 had a viscosity lower than 0.2 Pa·s at 1510℃ and the melting temperature was between 1436～1505℃. Meanwhile,the viscosity of the slags decreased with the increase of TiO₂,FeO contents and CaO/SiO₂,the melting temperature of molten slags increased with the increase of TiO₂ content while it decreased when FeO content increased,and it first decreased then increased with CaO/SiO₂.SEM images showed that the micro-phase changed from regular thin strip to short and disorder as TiO₂ content increased.更多还原