石化工业用新型高纯刚玉砖的开发  

Development of new type high-purity corundum brick for chemical and petrochemical industries

作　　者：陈人品[1] 

机构地区：[1]冶金工业部洛阳耐火材料研究院,洛阳471039

出　　处：《耐火材料》1997年第2期69-72,共4页Refractories

摘　　要：研究了微粉和添加剂对优质高纯刚玉砖力学性能的影响。结果表明，微粉和添加剂均可有效地促进高纯刚玉砖的烧结，显著改善其力学性能。加入适量添加剂可在较低温度下烧成制得性能优于美国AH199B的高纯刚玉砖。加入运量添加剂，可活化Al2O3晶格，促进刚玉砖晶粒沿二维方向长大，形成条柱状晶，明显地改善高的刚玉砖的强度和抗热震性。大批量制砖结果已经显示，平均常温耐压强反1224MPa，1250℃抗折强度11.1MPa，抗热震性平均超过14次，最高＞25次。在渣油气化炉和炭黑反应炉上使用已初步显示出它的优良的使用特性。Effect of micro-powder and additives on machnical properties of high purity corundum brick has been studied. It isindicated that the micro-powder and additives effectively accelerate the sinter of the brick and remarkably improve itsproperties. The corundum brick doped with additive sintered at lower-temperature has superior properties comparedwith the product AH199B from USA. The properties of the brick are: avernge cold compression strength 122. 4 MPa,hot modulus of rupture at 1250℃ 11.1 MPa, the average value of thermal shock resistance exceed 14 times, maximun>25 times. The application in residual oil gasifiers and carben black reation furnaces has shown good performances.

关 键 词：石油化学工业 刚玉砖 耐火材料 耐火砖 气化炉 

分 类 号：TQ175.712[化学工程—硅酸盐工业] TE65[石油与天然气工程—油气加工工程]