蜡石粒度组成对铁水包用ASC材料性能的影响

摘要

Agalmatolite with different grain size compositions was introduced into common AI2O3-SiC-C bricks for iron ladles to investigate the agalmatolite grain size composition on permanent linear change on heating, apparent porosity,bulk density,crushing strength,oxidation resistance,and slag resistance of AI2O3-SiC-C bricks.The results show that with the temperature rising,the apparent porosity firstly increases and then decreases, and bulk density decreases; with the agalmatolite grain size decreasing, the permanent linear changes of AI2O3-SiC-C bricks carbon embedded heated at 1 000 °C and 1 400 °C decrease,the cold crushing strengths increase,the oxidation resistance at 1 400 °C increases and the corrosion resistance at 1 500 'C decreases.%在铁水包用常规Al203 -SiC-C砖的配料组成中引入不同粒度组成的蜡石,研究了蜡石粒度组成对Al2O3-SiC-C材料加热永久线变化率、显气孔率、体积密度、耐压强度、抗氧化性和抗渣性的影响.结果表明:随着处理温度的升高,各试样的显气孔率先增大后减小,体积密度减小；随着所添加蜡石粒度的减小,试样在1 000和1 400℃埋炭热处理后的永久线变化率减小,常温耐压强度增大,1 400℃时的抗氧化性增强,但1 500℃时的抗侵蚀性降低.