高炉用新型自结合碳化硅砖性能研究

Properties of self-bonded silicon carbide brick for blast furnace

借助XRD、SEM等技术,对新型自结合碳化硅砖的抗碱性、抗渣性和抗热震性等高炉耐火材料的关键使用性能进行了研究,并与Si3N4结合碳化硅高炉砖进行了对比。结果表明:这种新型自结合碳化硅砖热导率高,力学性能好,抗碱性、抗渣性和抗热震性优良,预计用作高炉内衬具有良好的应用前景。

The alkali resistance,slag resistance,thermal shock resistance,etc.of new-type self-bonded silicon carbide bricks were studied by XRD,SEM,and other technical means,and were compared with those of Si3N4 bonded silicon carbide bricks.The results show that the new-type self-bonded silicon carbide bricks present high thermal conductivity,good slag resistance,thermal shock resistance,and mechanical properties,and are of great prospect as inner lining in blast furnace.