在抽油泵柱塞的基体上，对国产Ｎｉ６０Ａ自熔合金粉末进行了中频感应重熔与激光强化复合新工艺的试验研究，并对复合熔覆的表面粗糙度、空隙率、裂纹、显微组织及耐磨损能力进行了系统的分析。试验结果表明，复合熔覆具有中频感应重熔的优点，能够获得大面积的表面光洁的覆层，且覆层组织均匀，无裂纹，与基体存在良好的冶金结合；同时，复合熔覆又具有激光重熔的优点，不仅降低了覆层中的孔隙率，而且又提高了覆层与基体的结合强度，使之具有较好的耐磨损能力。 In the base of the pump plunger, the domestic new Ni60A self-fluxing alloy powder was tested by IF induction remelting and laser strengthening composite process. The surface roughness, porosity, crack, microstructure And wear resistance of a systematic analysis. The experimental results show that the composite cladding has the advantages of IF induction remelting, can obtain a large area of ​​the surface smooth coating, and the coating structure is uniform, no cracks, and the substrate there is a good metallurgical bond; the same time, the composite cladding has The advantages of laser remelting, not only reduce the porosity of the coating, but also improve the coating and the substrate bonding strength, so that it has good wear resistance.