通过对废旧WCp/Fe-C复合材料辊环的重熔和离心铸造,获得了由外表面厚度达10～15 mm的再生复合材料层和芯部Fe-C基体材料组成的复合结构辊环.使用MMS-1G高速销盘摩擦试验机,研究了WCp/Fe-C再生复合材料层的摩擦磨损性能.试验结果表明:再生复合材料的磨损率在相同的摩擦速度下随着载荷的增加逐渐增大,而摩擦系数逐渐减小;在相同的载荷下,再生复合材料的摩擦系数随着摩擦速度的增大而减小,磨损率随着摩擦速度的增大而增加.与原复合材料相比,再生复合材料的耐磨性能略有降低,但远高于高速钢.%A WCp/Fe-C recycled composite roller ring was prepared by means of remelting and centrifugal casting of waste composites. The surface layer of the roller ring is of recycled composite with a thickness of 10-15 mm and the core is Fe-C alloy matrix. The tribological properties of the recycled composite roller ring under high-speed condition were investigated by using of MMS-1G high speed pin-disk friction and wear testing machine. The results show that, on the condition that the friction velocity is not changed, the wear rate increases and the friction coefficient decreases with the increasing of load. On the condition that the load is not changed, the wear rate increases and the friction coefficient decreases with the increasing of friction velocity. The wear resistance of the WCp/Fe-C recycled composite is slightly worse than that of original composite, but far better than high-speed steel.
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