无氟连铸结晶器保护渣结晶矿相研究  

Study on Crystalline Phases of Fluoride-free Mold Flux

作　　者：苗胜田[1] 岳杰[1] 文光华[2] 唐萍[2] 

机构地区：[1]中冶京诚工程技术有限公司,北京100176 [2]重庆大学材料科学与工程学院,重庆400044

出　　处：《山西冶金》2017年第5期21-23,共3页Shanxi Metallurgy

摘　　要：采用岩相矿相显微镜,研究了含钛无氟保护渣结晶矿相的组成。实验结果表明:在本次实验中,渣样的结晶矿相主要是钙钛矿,个别渣样中有巴依石和黄长石析出;w(TiO_2)为6%时,随着碱度的升高,钙钛矿晶体的十字架结构逐渐减小,并开始出现粒状结构;碱度为1时,随着w(TiO_2)的增加,钙钛矿晶体的形状,由粒状结构逐渐变为十字架结构,w(TiO_2)为8%时开始出现十字架结构,w(TiO_2)增加为10%时出现了十字架的串联。By using ZEISS-optical microscope, the crystalline phase of mold fluxes in continue casting is studied. The result is that, under the experiment conditions in laboratory, the main crystalline phase of the slag samples is perovskite phase, in some slag samples nepheline, melilite and diopside are observed. When the content of TiO2 is 6% in mass, the cross of the perovskite decreases with the increasing basicity, and granuliform is observed. When the basicity is 1, the shape of the perovskite changes from granuliform to cross as the increase of TiO2, the cross is observed under the content of TiO2 is 8%, and the cross series connection will be formed when the content of TiO2 is 10%.

关 键 词：无氟保护渣 结晶矿相 钙钛矿 

分 类 号：TF777[冶金工程—钢铁冶金]