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ASH离心式泥浆泵,由于泥浆颗粒具有磨蚀性,所以泵件用极耐磨的镍铬白口铸铁铸造。Ni—Hard铸铁是工业上使用的最难切削的工程材料之一,它是马氏体基体且与热处理的钢相同,基体含有无数细碳化物。马氏体基体与碳化物有利于提高材料的耐磨性,但大大降低了切削性能。马氏体基体韧性好,其标准的硬度值为Rc53.5,接近于淬硬工具钢的硬度值。因而这种材料用硬质合金刀具很难进行切削,刀具切削刃磨损得极快,不能取得有效的
ASH Centrifugal Mud Pump, due to abrasive particles with abrasive, so the pump parts are very wear-resistant nickel-chrome white cast iron casting. Ni-Hard cast iron is one of the hardest cutting engineering materials used in the industry. It is a martensitic matrix and, like heat-treated steel, contains numerous fine carbides. The martensite matrix and carbides help improve the wear resistance of the material, but greatly reduce the cutting performance. Martensite matrix toughness, and its standard hardness Rc53.5, close to the hardened tool steel hardness value. Therefore, this material is difficult to cut with carbide cutting tools, cutting tool wear extremely fast, can not be effective