本文介绍了用改进浇铸工艺和热处理工艺的方法,以提高整铸式压气机铝叶轮的芯部强度的实验过程。实验所得结果证实,采用了本文所提出的改进办法,整铸式压气机铝叶轮芯部的强度能提高30％以上。这种整铸式压气机铝叶轮具有造价低廉,结构简单和机械加工少等优点。叶轮已在倒周速度高达400米/秒的情况下安全可靠运行了很长时间。 This paper presents an experiment to improve the core strength of an aluminum impeller for an all-cast compressor by improving the casting process and the heat treatment process. The experimental results show that using the improved method proposed in this paper, the strength of the cast aluminum compressor impeller core can be increased by more than 30%. This kind of cast-in compressor aluminum impeller has the advantages of low cost, simple structure and less machining. The impeller has been running safely and reliably for a long time at up to 400 m / s.