LF钢包包底周围填充用刚玉质捣打料的研制  

Development of corundum ramming material for filling around the bottom of LF

作　　者：苏鑫 李凤友 Su Xin;Li Fengyou(Yingkou Qinghua Group,Dashiqiao 115100,China;Shanxi Luweibao Taigang Refractory Materials Co.,Ltd.,Taiyuan 030009,China)

机构地区：[1]辽宁青花耐火材料股份有限公司,营口115100 [2]山西禄纬堡太钢耐火材料有限公司,太原030009

出　　处：《耐火与石灰》2024年第6期39-40,43,共3页Refractories & Lime

摘　　要：以棕刚玉、α-氧化铝微粉、SiC微粉为主要原料,分别采用磷酸、磷酸二氢铝、铝酸镁溶胶为结合剂,研究了不同结合剂对刚玉质捣打料物理性能的影响。结果表明:以磷酸为结合剂的捣打料经1 000℃和1 500℃保温3 h热处理后,试样的强度及各项性能均最佳,在LF钢包中实际试验应用取得良好的使用效果,满足了现场的使用要求。Effects of different binders on the physical properties of corundum ramming materials are investigated by using brown corundum,α-alumina micro-powder and SiC micro-powder as the main raw materials and phosphoric acid,aluminum dihydrogen phosphate and magnesium aluminate sol as the binders.The results show that the ramming material with phosphoric acid as the binder is the best in strength and various properties after undergoing heat treatment at 1000℃and 1500℃for 3 hours.It has achieved good results in practical testing and application in LF,meeting the on-site usage requirements.

关 键 词：钢包 棕刚玉 捣打料 结合剂 物理性能 

分 类 号：TQ175.12[化学工程—硅酸盐工业]