High-strength long-life aluminum silicon carbide carbon brick and preparation method thereof

The invention relates to the technical field of refractory materials, and provides a high-strength long-life aluminum silicon carbide carbon brick and a preparation method thereof.The high-strength long-life aluminum silicon carbide carbon brick is prepared from, by weight, 70-80 parts of bauxite, 10-12 parts of brown aluminum oxide, 6-8 parts of graphite, 8-12 parts of silicon carbide, 2.5-3.5 parts of antioxidant, 3.5-4.5 parts of binding agent and 2-3 parts of additive; the additive comprises cobaltosic oxide and/or yttrium oxide. Through the technical scheme, the problem of short service life of the aluminum silicon carbide carbon brick in the prior art is solved. 本发明涉及耐火材料技术领域，提出了一种高强度长寿命铝碳化硅碳砖及其制备方法，其中高强度长寿命铝碳化硅碳砖，包括以下重量份组分的原料：70~80份铝矾土、10~12份棕刚玉、6~8份石墨、8~12份碳化硅、2.5~3.5份抗氧剂、3.5~4.5份结合剂、2~3份添加剂；添加剂包括四氧化三钴和/或氧化钇。通过上述技术方案，解决了现有技术中铝碳化硅碳砖使用寿命短的问题。