挖泥船的叶轮是水泵过流部分的核心部件,是铸造生产的难点。铬系白口铸铁目前是国内外耐磨铸铁的主流[1],疏浚泵叶轮的选用材质为抗磨白口铸铁Cr26,它是一种典型的具有良好耐磨性的高铬铸铁,但由于它脆性较强,通常只用于生产形状简 The dredger’s impeller is the core part of the pump overcurrent part, is the difficulty of casting production. Chromium white cast iron is currently the mainstream of domestic and foreign wear-resistant cast iron [1], dumper pump impeller material selection for the anti-wear white cast iron Cr26, which is a typical high chromium cast iron with good wear resistance, but due to It is more brittle and is usually only used to produce simple shapes