BaO-CaO-CaF_2系渣用于钢液深脱磷能力  

Deep dephosphorization ability of BaO-CaO-CaF_2 flux for liquid steel

作　　者：田志红[1] 孔祥涛[1] 蔡开科[1] 王新华[1] 王涛[2] 石洪志[2] 朱立新[2] 

机构地区：[1]北京科技大学冶金学院,北京100083 [2]上海宝山钢铁股份有限公司,上海201900

出　　处：《北京科技大学学报》2005年第3期294-297,共4页Journal of University of Science and Technology Beijing

摘　　要：使用BaO-CaO-CaF2系渣在实验室中进行钢水深脱磷实验以获得超低磷钢水.实验结果表明,初始磷约为0.01%的条件下,获得了50%以上的脱磷率及0.005%以下最低0.002% 的磷含量;脱磷效果受钢水氧化性影响显著.实验测得1 813-1 893 K范围内该渣系的磷容量在1018-1019.35之间,并且随BaO含量增加,磷容量增大.Deep dephosphorization experiment was carried out in the laboratory by BaO-CaO-CaF2 flux to obtain ultra-low phosphorus steel. The result showed that the P content of the tested steel could decrease from about 0.01% to 0.005% or even lower to 0.002% with a dephosphorization ratio of 50% by use of this kind of flux. It is found that the oxidizability of steel has significant effect on dephosphoriztion when using the BaO-CaO-CaF2 flux. The phosphate capacity of the used system varied from 1018 to 1019.35 in 1813-1893 K and increased with the increase of BaO content.

关 键 词：BaO-CaO-CaF2系渣 超低磷钢 深脱磷 磷容量 

分 类 号：TF704.4[冶金工程—钢铁冶金] TF769.2