Abstract:

In this paper，the effect of heat-resistant steel fiber (1%,1.5%,2%,2.5%,3%,3.5% respectively) on the properties of high purity corundum castable refractories were studied.The results show  that when the heat-resistant steel fiber content is 2.5%，after low，medium and high temperature treatment，the high purity corundum castable refractories had higher volume density，suitable linear change,higher flexural strength and compressive strength.After 5 cycles of thermal shock by water cooling at 1 100℃，the  residual crushing  strength and residual compressive strength is still  higher，with satisfactory thermal shock resistance is better.