Analysis and Solution of Semi-adjusted Oblique Pump Impeller Processing Manufacturing Problems
Author of the article:ZHEN Zhijie
Author's Workplace：The Fourth Research and Design Engineering Corporation of CNNC,Shijiazhuang 050021,China
Key Words：leaf blade 0°reference line process clamp head unreasonable process pattern
Abstract：
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.
