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对用废旧的WCP/Fe-C基复合材料轧辊进行重熔和离心浇注制备的试样进行了研究,结果表明,复合材料辊环在相同条件下的高速磨损性能优于高速钢;芯部基体的冲击韧性最高达6.9J/cm2,可抵抗外界的冲击载荷;试样的硬度随离心机转速的升高而增加,而冲击韧性随离心机转速的升高而减小;试样工作层组织中WC颗粒分布比较均匀,WC颗粒被高温铁液局部熔解,甚至解体,WC颗粒的局部熔解、扩散又使在Fe-C合金基体被高合金化。通过对其性能研究为该技术发展提供数据参考。
The samples prepared by remelting and centrifugal casting of waste WCP / Fe-C composite roll were studied. The results show that the composite roll ring has better wear-resistance than high-speed steel under the same conditions. The core matrix Of the impact toughness of up to 6.9J / cm2, can withstand the impact load of the outside world; sample hardness increases with the centrifuge speed increases, while the impact toughness decreases with the centrifuge speed increases; working layer organization The distribution of WC particles is relatively uniform, and the WC particles are partially melted and even disintegrated by the high-temperature molten iron. Local melting and diffusion of the WC particles make the Fe-C alloy matrix highly alloyed. Through the study of its performance data for the development of the technology reference.