Effect of Various Alumina Powders on Properties of Castables  

作　　者：SONG Yanan WEI Guoping CHEN Qin SHUAI Hang LIU Guangping SHEN Mingke CHEN Yaosheng YU Yan WANG Yulong CAO Yaping 

机构地区：[1]Zhejiang Zili Advanced Materials Co.,Ltd.,Shaoxing 312300,China [2]Zhejiang Zili High Temperature Technology Co.,Ltd.,Shaoxing 312300,China

出　　处：《China's Refractories》2022年第2期45-48,共4页中国耐火材料（英文版）

摘　　要：To satisfy the requirements of alumina castables in specific environment and enhance their properties,alumina castables were prepared using tabular alumina,various alumina powders(07RAL,15RA,22RABL,40CA,99-20um,and 99-325mesh),and calcium aluminate cement as main raw materials,and heat treating at 110,1000,1600℃,respectively.Their flowability and physical properties were tested,and the morphology was researched.The results show that compared with calcined alumina and tabular alumina powders,reactive alumina has higher specific surface area and better filling performance leading to lower water demand and higher viscosity,and the castables prepared with reactive alumina have higher CCS and CMOR after heat treating at 110,1000 and 1600℃as well as lower PLC than those with calcined alumina and tabular alumina powders.

关 键 词：alumina powder CASTABLES rheological property construction time sintering performance 

分 类 号：TQ175.732[化学工程—硅酸盐工业]