活性氧化铝微粉种类对钢包用ρ-Al2O3结合Al2O3-MgO浇注料性能的影响  

Effect of types of activated alumina micropowder on properties ofρ-Al2O3 bonded Al2O3-MgO castables for ladles

作　　者：李仕祺 李远兵[1] 魏昊 徐娜娜[1] 李淑静[1] Li Shiqi;Li Yuanbing;Wei Hao;Xu Nana;Li Shujing(The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China;不详)

机构地区：[1]武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北武汉430081 [2]阿泰欧法铝(上海)有限公司,上海200135

出　　处：《耐火材料》2020年第5期399-403,408,共6页Refractories

摘　　要：为了改善Al2O3-MgO浇注料的常温以及高温性能,对比研究了活性氧化铝微粉种类(PBR、PFR40、M)对钢包用Al2O3-MgO浇注料流动值和脱模、烘后、1550℃热处理后常温性能及高温性能的影响。结果表明:1)采用振动台法,加入PFR40的浇注料试样的流动值更大;2)加入PFR40的浇注料试样脱模和烘后的显气孔率最小,具有较好的抗渣渗透性,且常温耐压强度最高;3)加入PFR40的浇注料试样有较好的抗热震性能和高温抗折强度。In order to improve their performance,the effect of the types of activated alumina micropowder(PBR,PFR40,and M)on the fluidity of Al2O3-MgO castables for ladles as well as their cold and hot properties after demolding,drying,and heat treatment at 1550℃was compared and studied.The results show that:adding with PFR40,(1)the castable sample has a high flow ability by the shaking table method;(2)it has the lowest apparent porosity after demolding and drying,showing good resistance to slag penetration and the highest cold compressive strength;(3)and it has good thermal shock resistance and high hot modulus of rupture.

关 键 词：Al2O3-MgO浇注料 活性氧化铝微粉 常温性能 高温性能 ρ-Al2O3结合 

分 类 号：TQ175[化学工程—硅酸盐工业]