BN粉加入量对Al2O3-SiC-C浇注料性能的影响  

Effect of BN addition on properties of Al2O3-SiC-C castables

作　　者：黄健 韩兵强[1] 鄢文[1] 魏耀武[1] 李楠[1] Huang Jian;Han Bingqiang;Yan Wen;Wei Yaowu;Li Nan

机构地区：[1]武汉科技大学省部共建耐火材料与冶金国家重点实验室

出　　处：《耐火材料》2019年第5期354-358,共5页Refractories

摘　　要：为了提高均质矾土基Al2O3-SiC-C耐火浇注料的性能,在以88均质矾土颗粒、碳化硅颗粒和细粉、白刚玉细粉、活性α-Al2O3微粉、球状沥青、SiO 2微粉、铝酸盐水泥为主要原料的均质矾土基Al2O3-SiC-C浇注料中,添加质量分数分别为0、0.5%、1.0%、1.5%、2.0%的氮化硼粉(粒度≤1μm),研究氮化硼粉加入量对Al2O3-SiC-C浇注料常温物理性能、抗氧化性能和抗渣侵蚀性的影响。结果表明:添加0.5%~1%(w)的BN粉有助于试样的烧结致密化;随着BN粉加入量的增加,试样的抗氧化性和抗渣性逐渐增强;综合考虑,BN粉的适宜添加量为0.5%~1%(w)。In order to improve the performance of homogeneous alumina-based Al 2O 3-SiC-C castables,boron nitride fine powder(particle size≤1μm)was introduced into starting materials of homogeneous bauxite 88 particles,silicon carbide particles and fine powder,white corundum fine powder,activeα-Al 2O 3 fine powder,spherical asphalt,SiO 2 fine powder,and aluminate cement.The effects of boron nitride fine powder addition(mass fraction of 0,0.5%,1.0%,1.5%,and 2.0%)on the cold physical properties,oxidation resistance and the slag corrosion resistance of the Al 2O 3-SiC-C castables were studied.The results show that the addition of 0.5%-1.0%BN can help the sintering of the specimens;as the BN addition increases,the oxidation resistance and the slag corrosion resistance of the specimens enhance;to sum up,the optimal addition of BN is 0.5%-1.0%.

关 键 词：高炉 铁沟料 AL2O3-SIC-C浇注料 BN 抗氧化性 抗渣侵蚀性 

分 类 号：TQ175[化学工程—硅酸盐工业]