林州天然硅线石-红柱石复合矿粉对高铝质浇注料性能的影响  

Influence of sillimanite-andalusite composite powder on properties of bauxite based castables

作　　者：谢朝晖[1] 叶国田[2] 张艳利[3] 黄亚冬[2] 王春生 

机构地区：[1]中钢集团工程设计研究院有限公司武汉中南设计院,湖北武汉430080 [2]郑州大学高温功能材料河南省重点实验室,河南郑州450052 [3]中钢集团洛阳耐火材料研究院有限公司,河南洛阳471039 [4]河南省林州市伟隆矽线石有限公司,河南林州456550

出　　处：《耐火材料》2011年第1期37-40,45,共5页Refractories

基　　金：国家高技术研究发展计划(863计划)2009AA032503

摘　　要：以山西特级矾土熟料为主要原料制备高铝质低水泥浇注料,研究了分别用质量分数为0、3%、5%、7%的林州天然硅线石-红柱石复合矿粉等量替代矾土熟料粉对浇注料基质物相和浇注料性能的影响。结果表明:将硅线石-红柱石复合矿粉加入到高铝质低水泥浇注料中,明显改善了浇注料的物理性能,提高了材料的烧后冷态强度和高温强度,改善了浇注料的抗热震性能,而且适量加入还明显提高了材料的荷重软化温度。综合各项性能认为,加入硅线石-红柱石复合矿粉的质量分数以5%为佳。Bauxite based low cement castables were prepared using special grade sintered bauxite produced in Shanxi Province as the main starting material.The natural sillimanite-andalusite composite powder（0,3%,5%,and 7% of mass percent） from Linzhou was used to substitute the same mass of sintered bauxite powder,and its influence on the phase composition in matrix and the properties of castables were investigated.The results show that the physical properties of the bauxite based low cement castables are improved by adding sillimanite-andalusite composite powder in terms of CCS,hot strength,thermal shock resistance,and refractoriness under load.The optimum addition of sillimanite-andalusite composite powder is 5%.

关 键 词：硅线石-红柱石复合矿粉 高铝浇注料 莫来石 高温强度 抗热震性 荷重软化温度 

分 类 号：TQ175.732[化学工程—硅酸盐工业]