ZrB_(2)-SiC复合粉加入量对ASC浇注料性能的影响  

Effect of ZrB_(2)-SiC Composite Powder on Properties of ASC Castable

作　　者：王伟强 李德民 杨强 王义龙 杨松 涂军波 WANG Weiqiang;LI Demin;YANG Qiang;WANG Yilong;YANG Song;TU Junbo(Hebei Enterprise Technology Center,Hebei Refractory Technology Innovation Center,Hebei Guoliang New Material Co.Ltd.,Tangshan 063000,China;Hebei Inorganic Non-Metallic Materials Main Lab,North China University of Technology,Tangshan 063000,China)

机构地区：[1]河北国亮新材料股份有限公司、河北省钢铁冶炼用耐火材料技术创新中心、河北省企业技术中心,河北唐山063000 [2]华北理工大学河北省无机非金属材料重点实验室,河北唐山063000

出　　处：《工业炉》2023年第1期69-72,共4页Industrial Furnace

基　　金：河北省钢铁联合研究基金(E2017209094);河北省自然科学基金项目(E2017209164)。

摘　　要：以刚玉为骨料,以氧化铝微粉、碳化硅细粉、硅微粉、70纯铝酸钙水泥、碳素及ZrB_(2)-SiC抗氧化复合粉等做基质,制得高炉出铁沟用耐火浇注料;以ZrB_(2)-SiC复合粉作为抗氧化剂,测试其对中温1000℃及高温1500℃烧后试样抗折、耐压强度、线变化率和坯体抗氧化性的影响,复合粉加入量分别为0、0.5%、1%、1.5%及2%,按照相同加入量等量减少刚玉粉。结果表明:随ZrB_(2)-SiC复合粉的增加,试样高温处理后的线变化率逐渐加大,体积密度呈现先升后降的趋势,高温抗折强度先增大后减小,抗氧化性则逐步变好;当ZrB_(2)-SiC复合粉加入1%时,高温抗折强度呈现最佳值,试样可以得到最好的综合指标。Taking corundum was used as aggregate,alumina powder,silicon carbide powder,silicon powder,70 pure calcium aluminate cement,carbon and ZrB_(2)-SiC anti-oxidation composite powder as matrix to prepare refractory castable for blast furnace iron ditch.ZrB_(2)-SiC composite powder was used as antioxidant to test its influence on bending strength,compressive strength,linear change rate and green body oxidation resistance of samples sintered at medium temperature 1000℃and high temperature 1500℃.The addition amount of composite powder is 0,0.5%,1%,1.5%and 2%respectively.The corundum powder was equal reduced according to the same addition amount.The results show that with the increase of ZrB_(2)-SiC composite powder,the linear change rate of the sample after high temperature treatment gradually increases,the bulk density first increases and then decreases,the high temperature flexural strength first increases and then decreases,and the oxidation resistance gradually becomes better.When ZrB_(2)-SiC composite powder is added with 1%,the high temperature flexural strength presents the best value,and the sample can get the best comprehensive index.

关 键 词：氧化铝-碳化硅-碳浇注料 ZrB_(2)-SiC复合粉 抗氧化性 高温抗折强度 

分 类 号：TQ175.732[化学工程—硅酸盐工业]