摘要
通过实验研究了氟的替代熔剂BaO对无氟保护渣熔化及结晶性能的影响，测定了该无氟渣系的熔化温度和结晶温度，结果表明：在实验渣系条件下，随着BaO含量的增加，保护渣的熔化温度明显降低，结晶温度降低不明显。碱度为0．9，MgO：3％～5％，Al2O3：1％～2％，Na2O：6％～8％，B2O3：3％～4％，Li2O：O～2％，BaO：6％～8％，C：3％～4％的无氟渣组成可满足裂纹敏感性弱的钢种高速连铸的要求。
Influence of substituted flux of fluoride BaO on melting and crystalline properties of fluoride-free mould powder was studied by experiment. The melting temperature and crystalline temperature of the fluoride-free mould powders were measured. The results show： under the conditions of experimental powders the melting temperature obviously decreases and the crystalline temperature has no obvious reduction with the increase of the content of BaO. The fluoride-free mould powders with CaO/SiO2 =0.9 and ingredient being 3%～5%MgO;1%～2%Al2O3 ;6%～8%Na2O; 3%～4%B2O3 ; 0～2%Li2O; 6% ～8%BaO; 3%～4%C could meet high speed continuous casting of steels with low crack sensitivity.
出处
《中国材料科技与设备》
2007年第2期108-110,共3页
Chinese Materials Science Technology & Equipment
基金
内蒙古自然科学基金资助项目（200208020206）
关键词
助熔剂
BAO
熔化温度
结晶温度
Fluxed Additions
BaO
Melting temperature
Crystalline temperature
