摘要
缩孔、浇不足、疏松是熔模铸造常见的铸造缺陷,采用加压真空吸铸工艺浇注导弹发动机叶轮,能消除上述缺陷。采用该工艺生产薄壁件、复杂件和大型精密件的效果也十分显著,具有充型能力强、铝合金铸件的密度高、金相组织细小、均匀,力学性能大大提高。
Shrinkage (hole)porosity and misrun often occur in the investment casting missile engine blade. The above mentioned defects can be eliminated by pressurized vacuum suction casting method. In addition, the technology exhibits the more obvious effects in producing complicated thin-walled aluminum alloy components and large investment castings due to its better filling capacity, greatly improving the microstructure and mechanical properties of the missile engine blade.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2009年第10期933-934,共2页
Special Casting & Nonferrous Alloys
关键词
铸件缺陷
薄壁件
加压
真空吸铸
Casting Defects, Thin-walled Component, Pressurization, Vacuum Suction Casting
