一、引宫高铬白日铸铁自七十年代中期开始研究以来，以其良好的耐磨性和较高的韧性在水泥、电力、矿山和轧钢机械中得到广泛的应用。目前国内部分抛丸机叶片也已开始使用高铬铸铁。但还有一些国外进口抛丸机使用国产叶片仍存在使用寿命低，周期短，成本高等问题，为使国产叶片? First, cited the palace high-chromium daytime cast iron since the mid-1970s began to study, with its good wear resistance and high toughness in cement, power, mining and rolling machinery has been widely used. At present, some domestic blasting machine blades have also begun to use high-chromium cast iron. However, there are still some foreign imports of shot blasting machine using domestic leaves still exist low life expectancy, short cycle, high cost, in order to make domestic leaves?