石墨钛酸铝复合除气转子的研制  

Development of Graphite and Aluminium Titanate Composite Degassing Rotor

作　　者：李成蹊[1] 李怀荣 

机构地区：[1]山东科技大学材料科学与工程学院,青岛266510 [2]淄博建宗陶瓷有限公司,淄博256411

出　　处：《现代技术陶瓷》2015年第4期10-14,共5页Advanced Ceramics

摘　　要：采用石墨与钛酸铝陶瓷保护套管复合制成石墨钛酸铝复合除气转子,进行了陶瓷保护套管用钛酸铝材料的研究,以及复合除气转子中间过度层的研究。利用钛酸铝具有高熔点(1860℃)、低膨胀和低导热等特性制成保护套管,经过对石墨进行表面处理及合适的中间过度层,经适当的复合工艺制成石墨陶瓷复合除气转子。结果表明,这种转子具有很好的抗热震性及优良精练除气效果。已在使用中显示出性能优异,完全满足铝合金铸件精练除气工艺要求。Graphite and aluminium titanate composite degassing rotor made of graphite and alu‐minium titanate ceramics protective casings was used to study the aluminium titanate materials to be used as ceramic protective casing and transition layer of the composite degassing rotor .The aluminium titanate was made into protective casing taking advantage of its high melting point （1 ,860℃） and oth‐er properties such as low expansion and low thermal conductivity .After surface treatment of the graphite and adoption of proper transition layer ,the graphite ceramics composite degassing rotor was fabricated with appropriate compound technology .The result indicated that the rotor demonstrated good shock resistance and excellent refining and degassing efficiency .The outstanding performance of the rotor can fully meet requirements of the refining and degassing process for aluminum alloy castings .

关 键 词：钛酸铝 石墨 无机聚合物 铝合金精练除气 复合转子 

分 类 号：TQ174.758[化学工程—陶瓷工业]