摘要
针对复杂空心定向涡轮叶片精密铸造技术需求,在前期研究基础上,研究了陶瓷粉料级配技术、型芯成型工艺、型芯焙烧工艺、型芯低温强化工艺,制备出满足高推重比发动机空心涡轮叶片浇注要求的陶瓷型芯材料。该材料应用后,某型航空发动机高压涡轮定向空心无余量工作叶片合格率达60%以上,解决了航空发动机定向空心叶片精密铸造行业技术瓶颈。
Aiming at the demand of the directional solidification complex thin wall hollow turbine blades for the jet engines for the investment casting technology, on the basis of the previous study, the technology of particle gradation, preparation, sintering and reinforcement for core were studied in the paper. The combined properties of the cores can meet the pouring requirement for superalloy hollow turbine blades of the high thrust-weight ratio aero-engine. Based on the application of the core materials, the pass ratio of the hollow turbine blades of jet engine is stabilized to more than 60%. The solution of ceramic core technology for hollow turbine blades improves the producing capability and industrialization level.
出处
《铸造》
CAS
CSCD
北大核心
2015年第1期1-4,共4页
Foundry
关键词
涡轮叶片
精密铸造
高强度型芯
hollow turbine blade
investment casting technology
high-strength ceramic core
