混凝土搅拌机拌叶失效分析再探

Analysis on the failure of concrete stirring machine vane

利用扫描电镜（ＳＥＭ）等仪器对强制式混凝土搅拌机拌叶进行了深入系统的微观失效分析，揭示其主要磨损机理是：犁削、撞击凿削及碳化物破碎剥落。在此基础上，提出了改进拌叶寿命的方案．

The failure of concrete stirring machine vane is analysed by SAM. It is found that the ploughingcutting, striking and chisel-cutting, the desquamating and fracture of carbides are the major wear mechanism, from which the ameliorative measure of the vane is suggested.