沥青软化点对炮泥性能的影响  

Effects of softening point of pitch on properties of taphole clay

作　　者：范咏莲[1] 张君博[1] 刘兴平[1] 张正富 刘斌 赵军 

机构地区：[1]中冶建筑研究总院有限公司,北京100088 [2]北京冶耐工程材料有限公司,北京100088

出　　处：《耐火材料》2010年第6期450-451,共2页Refractories

摘　　要：以矾土、碳化硅、黏土、沥青、焦炭为原料,焦油为结合剂制备了炮泥试样,并研究了沥青软化点（75~145℃）对炮泥可塑性和强度的影响。结果表明：炮泥试样的可塑性不随沥青软化点的增大而呈现有规律的变化,沥青对炮泥可塑性的影响主要由沥青的组成决定;200℃烘干后试样的强度也不随沥青软化点的变化而呈现有规律的变化;但1000、1450℃烧后试样的强度随沥青软化点的升高呈增大趋势;综合考虑,制备炮泥用沥青的软化点以120~160℃为宜。The taphole clay specimens were prepared using bauxite,SiC,clay,pitch,and coke as starting materials,tar as binder.Effect of softening point（75-145 ℃） of pitch on the plasticity and strength of taphole clay was investigated.The results show that：the plasticity of taphole clay does not regularly vary with the pitch softening point,while it is determined by the composition of pitch;the strength of specimens fired at 200 ℃ doesn＇t regularly vary with the pitch softening point,but the strength of specimens fired at 1 000 ℃ and 1 450 ℃ increases with the pitch softening point increasing.The optimum pitch softening point for taphole clay is 120-160 ℃.

关 键 词：沥青 炮泥 软化点 可塑性 强度 

分 类 号：TQ519[化学工程]