Effect of Spinels on Properties of MgO-Al_(2)O_(3) Refractories for RH Snorkels  

作　　者：ZHAO Huizhong LI Jingjie 

机构地区：[1]The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China

出　　处：《China's Refractories》2021年第3期1-6,共6页中国耐火材料（英文版）

摘　　要：With satisfactory high temperature properties,thermal shock resistance and mechanical properties,refractories in the MgO-Al_(2)O_(3) system have become promising alternative to MgO-Cr_(2)O_(3) counterpart used as RH snorkel lining.High purity dead burned magnesia,fused magnesia and sintered spinel were used as raw materials and sulfite pulp waste as the binder,specimens of the refractories in the Mg0-Al_(2)O_(3) system were prepared for the purpose of investigating the influences in terms of the addition of three kinds of spinels,with Al_(2)O_(3) 50%,66% and 78%,by mass,respectively,and the size of MA50 spinel on properties of the specimens.Relatively superior comprehensive properties can be achieved when 16%of MA50 spinel with sizes under 1mm is adopted.

关 键 词：magnesium aluminate spinel magnesia-alumina refractories RH snorkel properties 

分 类 号：TQ175.1[化学工程—硅酸盐工业]