半调节式斜流泵叶轮制造问题探讨  

Analysis and Solution of Semi-adjusted Oblique Pump Impeller Processing Manufacturing Problems

作　　者：甄志杰 ZHEN Zhijie(The Fourth Research and Design Engineering Corporation of CNNC,Shijiazhuang 050021,China)

机构地区：[1]中核第四研究设计工程有限公司,河北石家庄050021

出　　处：《铸造技术》2020年第8期733-735,741,共4页Foundry Technology

摘　　要：半调式斜流泵在试制阶段做水利性能试验时,发现扬程、流量和效率均低于要求。分析了扬程、流量和效率均低于技术要求的原因,研究并制订了解决方案。结果表明,通过优化叶片的铸造工艺和机加工工艺,解决了叶片加工精度问题;通过工装优化,解决了叶片无工艺卡头状态下再次加工定位销孔的问题。确定的典型工艺,为半调节式斜流泵叶轮加工制造提供了参考。It was found that the head, flow rate and efficiency were lower than the requirements in the hydraulic performance test of the semi-adjustable inclined flow pump in the trial production stage. The reasons why the head, flow rate and efficiency were lower than the technical require ments were analyzed. The results show that the problem of blade machining precision is solved by optimizing the casting process and machining process. By means of tooling optimization,the problem of reworking locating pin hole in blade without process clamp is solved. The determined typical process provides a reference for the manufacture of semi-regulated inclined flow pump impeller.

关 键 词：叶片 0°基准线 工艺卡头 工艺不合理 工装胎具 

分 类 号：TG245[金属学及工艺—铸造]