耐热钢纤维对高纯度刚玉质浇注料性能的影响

Effect of heat-resistant steel fiber on the properties of high purity corundum castable refractories

研究了外加不同质量分数的耐热钢纤维(分别为1%、1.5%、2%、2.5%、3%、3.5%)对高纯度刚玉质浇注料性能的影响。综合结果表明:当耐热钢纤维加入量为2.5%时,经过低、中、高温热处理后的高纯度刚玉质浇注料具有较高的体积密度、适宜的线变化、较高的抗折强度和耐压强度;经1 100℃水冷循环5次后试样的残余抗折强度和残余耐压强度较高,其抗热震性能较佳。

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.