B_2O_3对CaO-Al_2O_3-SiO_2-MgO-CaF_2五元精炼渣系熔化特性的影响  

Influence of B_2O_3 on Melting Characteristics of CaO-Al_2O_3-SiO_2-MgO-CaF_2 Pentary Slag Series

作　　者：于学斌[1] 时启龙[1] 翟荣灿 朱志强[1] 程亮[1] 栾启川[1] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,武汉430081 [2]洛阳科丰冶金新材料有限公司,洛阳471300

出　　处：《特殊钢》2006年第4期5-7,共3页Special Steel

摘　　要：通过半球点法研究了B2O3对40．5％-70．0％CaO-19％-45％Al2O3-SiO2-MgO-CaF2五元渣系熔化温度和完全熔化时间的影响。实验结果表明,当渣中CaO含量为40．5％～60％,CaF2 2％-10％,(B2O3％)/ (CaF2％)为0．17～0．33时,渣系的熔化温度较不加B2O3的五元渣平均降低30℃,完全熔化时间平均降低49 s。合适的多元脱硫精炼渣系的成分为60％CaO,19％-30％AlO3,≤10％(MgO+SiO2),2％～6％CaF2, (B2O3)／(CaF2)=0．17。The effect of B2O3 on melting temperature and complete melting time of 40.5% -70.0%CaO - 19% - 45 % Al2O3- SiO2- MgO- CaF2 pentary slag series by semi- sphere point method has been studied. The test results showed that the average melting temperature of pentary slag with 40.5 % - 60% CaO, 2 % - 10% CaE2 and （B2O3 ）/（ CaF2 ） = 0.17 - 0.33 was 30 ℃ less than that of pentary slag series without adding B2O3 and the average complete melting time decreased by 49 s as compared with that without adding B2O3 . The available multicomponent desulphurization refining slag ingredient is 60%CaO, 19% - 30%Al2O3, ≤10%（MgO＋ SiO2）, 2% - 6%CaF2 and （B2O3）/（CaF2） = 0.17.

关 键 词：B2O3 CaO-Al2O3-SiO2-MgO-CaF2 五元渣系 熔化特性 

分 类 号：TF769[冶金工程—钢铁冶金]