本文利用真空密封原理,在铸型表面铺置干、散状铬系合金粉粒,系统地进行了钢铸件耐磨表面合金化的试验研究.合金化过程中基本上排除了传统工艺易于产生结合不好、气孔和夹渣等疵病的原因,从而稳定了合金化工艺过程,提高了合金化质量。试验表明,可以根据铸件使用性能要求,进行单元和多元铬系合金耐磨表而的合金设计,匹配适当的工艺参数,以获致良好的综合使用性能. In this paper, the principle of vacuum sealing was used to lay dry and dispersive chromium-based alloy particles on the surface of the mold, and the experimental research on the wear-resistant surface alloying of steel castings was carried out systematically.The alloy was basically ruled out from the traditional process Bad, stomatal and slag inclusions and other flaws, thus stabilizing the alloying process and improve the alloying quality. Tests show that, according to the performance requirements of the casting, the unit and the chrome alloy wear-resistant alloy table design, matching the appropriate process parameters, in order to achieve good overall performance.