高岭土性能研究及其对炮泥性能的影响  

Properties of kaolin and its effect on properties of taphole clay

作　　者：夏欣鹏[1] 甘菲芳[1] 唐莉[1] 

机构地区：[1]宝山钢铁股份有限公司,上海201900

出　　处：《耐火材料》2011年第3期206-208,共3页Refractories

摘　　要：对宝钢炮泥用过的两种不同产地的200目(≤0.074 mm)高岭土SZ和SX进行了化学分析、XRD物相分析、SEM显微结构观察和粒度分布测定,以了解两种高岭土的性能差异;并对添加15%(质量分数)的两种高岭土所制备的炮泥进行了马夏值和不同温度处理后常温耐压强度的测定,以研究选用不同高岭土的炮泥的性能差异。结果表明:与SZ高岭土相比,SX高岭土的纯度更高,粒度更细,含有叶蜡石相,且其片状晶层解理完整。因此,在同样条件下,含叶蜡石相的SX高岭土可以赋予炮泥更好的可塑性,并提高炮泥的烧结强度。Kaolin SZ and kaolin SX from two producing areas used for taphole clay of Baosteel（ ≤0.074 mm） were researched by chemical analysis,XRD, SEM, and particle size distribution test to study their property differences. The Marshall value and CCS after heat treatment at different temperatures of the taphole clay added with 15% kaolin in mass were tested, respectively. The results show that compared with kaolin SZ,kaolin SX has higher purity, smaller granularity, and pyrophyllite phase and its platy crystal layer cleavages fully; thus,kaolin SX with pyrophyllite phase can endow taphole clay plasticity and higher sintering strength after fired.

关 键 词：高岭土 炮泥 可塑性 强度 烧结 

分 类 号：TQ342.742[化学工程—化纤工业]