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鉴于原国产矿用筛板早期失效、寿命低于进口日本筛板，本文通过合金化、铸造工艺、热处理等几个方面对高铭铸铁展开了一系列的试验研究．结果表明，选用Ｃｒ／Ｃ比为７左右的Ｃｒ２０型高铬铸铁，添加适量的Ｍｏ、Ｃｕ、Ｍｎ，经过合适的热处理工艺，可获得分布均匀的高硬度Ｍ７Ｃ３型碳化物和马氏体基体，使筛板材料达到最佳的强韧性配合，通过改进铸造工艺使碳化物定向排列，当筛板工作面同碳化物纤维方向相垂直时，可以有效的抵抗磨料的磨损．新研制筛板的耐磨性明显提高，使用寿命高于原筛板３０％以上，并且超过日本生产的筛板寿命，为该厂提供了较好的社会效益和经济效益。
In view of the early failure of the original domestic mining sieve plate, life expectancy lower than imported Japanese sieve plate, this article through the alloying, casting process, heat treatment and other aspects of the high Ming cast iron launched a series of experimental studies. The results show that the Cr20 high chromium cast iron with a Cr / C ratio of about 7 is selected and suitable amounts of Mo, Cu and Mn are added. After proper heat treatment, the uniformly distributed high hardness M7C3 carbides and martensite matrix are obtained, So as to achieve the best strength and toughness of the sieve material. By improving the casting process to align the carbides, the wear of the abrasive can be effectively resisted when the surface of the sieve is perpendicular to the direction of the carbide fibers. The newly developed sieve plate wear resistance improved significantly, the service life of more than 30% of the original sieve above, and more than the Japanese production of sieve life expectancy for the plant to provide a better social and economic benefits.