摘要
介绍了高温合金空心叶片熔模铸造用陶瓷型芯与型壳的应用背景,及其对于高温合金空心叶片精密成形的重要意义,概述了采用熔模铸造工艺制备高温合金空心叶片对陶瓷型芯与型壳各项性能的基本要求;并指明了陶瓷型芯与型壳今后的发展方向。分别叙述了陶瓷型芯与型壳基体材料的选择、制备工艺及其对性能的影响,介绍了陶瓷型芯脱除工艺的研究进展及存在的问题。另外,对于陶瓷型芯与型壳定位的精确度、性能匹配性对高温合金空心叶片质量影响进行了评述。
The application background and key role as well as the basic performance requirements of ceramic cores and shells used for the investment casting of superalloy hollow blade were introduced, and the future development direction of ceramic cores and shells was described. The raw materials of the ceramic cores and shells, together with the manufacture methods and their influence on the prop- erties were reviewed respectively. The research status and existing problems of leaching technics of ceramic cores were introduced. In addition, the important influence of positioning accuracy and the consistency of ceramic cores and shells on the quality of superalloy hollow blade was evaluated.
出处
《材料工程》
EI
CAS
CSCD
北大核心
2013年第8期85-91,共7页
Journal of Materials Engineering
关键词
陶瓷型芯
陶瓷型壳
高温合金
空心叶片
熔模铸造
ceramic core
ceramic shell ; superalloy ; hollow blade ; investment casting