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通过分析当前电力机车受电弓滑板存在的各种问题,用粉末冶金法研制出了一种新型的受电弓滑板.该滑板由铜、碳纤维和石墨等构成.首先分析了成形压力、烧结温度对滑板性能的影响,然后对其导电性、摩擦、磨损性能及冲击韧性进行检测并与当前正在使用的受电弓滑板进行了对比.结果表明,该新型滑板的最佳制备工艺条件为铜含量78%,碳纤维含量2%,石墨含量15%,添加剂含量5%,成形压力为200MPa,烧结温度为880℃.该滑板不仅电阻率很低,而且其摩擦、磨损及冲击韧性等性能也较当前正在使用的受电弓滑板优越.与当前正在使用的碳滑板相比,其摩擦系数降低54.5%,磨损量减少41%,冲击韧性提高9.6倍,导电性增强87倍.
By analyzing the problems existing in the pantograph skateboard, a new pantograph skateboard was developed by powder metallurgy method.The skateboard consists of copper, carbon fiber and graphite.Firstly, the forming pressure, sintering temperature Then the conductivity, friction, wear performance and impact toughness of the sliding plate were tested and compared with the current pantograph skateboard.The results show that the optimum preparation conditions of the new skateboard are copper content 78%, carbon fiber content of 2%, graphite content of 15%, additive content of 5%, forming pressure of 200MPa, sintering temperature of 880 ° C. The skateboard not only low resistivity, and its friction, wear and impact toughness than the current performance The pantograph skateboard being used is superior and has a 54.5% reduction in coefficient of friction, a 41% reduction in wear, a 9.6-fold improvement in impact toughness, and an 87-fold improvement in conductivity compared to the carbon skateboard currently in use.