%A LIANG Hui-hua %T The Rupture of Pump Lid and Reason Analysis %0 Journal Article %D 2003 %J Journal of Drainage and Irrigation Machinery Engin %R 10.3969/j.issn.1674-8530.2003.05.010 %P 31-33 %V 21 %N 5 %U {http://zzs.ujs.edu.cn/pgjx/CN/abstract/article_1026.shtml} %8 2003-09-25 %X The rupture course of the pump lid in Fushan Parent Company of Water Supply Pumping Station is introduced. After the inspection of chemical element and the check of the golden-phase tissue of the pump lid material, the analysis result is gained as below: The factors of the rupture of pump lid are pump work time, material fatigue degree, process procession and material mechanical performance. The main reason may be instantaneous excessive load , but the proof is not sufficient. Whether there are some other reasons cause the pump lid rupture or not remains to be studied further.