铝镁炭砖使用时的膨胀问题  

Thermal expansion of Al_2O_3-MgO-C bricks in using

作　　者：卫令宣[1] 韩秀越[1] 周静[1] 

机构地区：[1]洛阳耐火材料研究院,洛阳471039

出　　处：《耐火材料》1998年第3期141-142,共2页Refractories

摘　　要：针对铝镁炭砖高温下产生较大热膨胀的原因，研究了基质中引入的两种尖晶石对试样膨胀性能的影响，指出尖晶石的加入量和其化学组成是控制制品残余膨胀的关键因素。The reason that Al2O3-MgO-C bricks excessively expand when used at high temperature has been analysed, and the effects of spinels additives in the matrix on thermal expansion have been studied. It is pointed out that the addition amount of spinels and their chemical commpition are the key factors to control the excessive expansion of above-mentioned bricks at high temperature.

关 键 词：铝镁炭砖 铝尖晶石碳砖 膨胀 耐火材料 

分 类 号：TQ175.13[化学工程—硅酸盐工业]