CAJ | 학술논문

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一种新型的受电弓滑板.该滑板由铜、碳纤维和石墨等构成.分析了成形压力、烧结温度对滑板性能的影响,对其导电性、摩擦、磨损性能及冲击韧性进行了检测,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(含量)铜78%,碳纤维2%,石墨15%,添加剂5%,成形压力为200MPa,烧结温度为880℃.该滑板不仅电阻率低,而且其摩擦、磨损及冲击韧性等性能也优越于当前正在使用的受电弓滑板.与国外浸金属碳滑板Rh82Mb相比,其摩擦系数降低20%,磨损量减少1.3%,冲击韧性提高1.7倍,导电性增强65倍.
통과분석당전전력궤차수전궁활판존재적각충문제,용분말야금법연제출일충신형적수전궁활판.해활판유동、탄섬유화석묵등구성.분석료성형압력、소결온도대활판성능적영향,대기도전성、마찰、마손성능급충격인성진행료검측,병여당전정재사용적수전궁활판진행료대비.결과표명:해신형활판적최가제비공예조건위(함량)동78%,탄섬유2%,석묵15%,첨가제5%,성형압력위200MPa,소결온도위880℃.해활판불부전조솔저,이차기마찰、마손급충격인성등성능야우월우당전정재사용적수전궁활판.여국외침금속탄활판Rh82Mb상비,기마찰계수강저20%,마손량감소1.3%,충격인성제고1.7배,도전성증강65배.
In view of the existing problems of current electric locomotive pantograph slide plates, a new pantograph slide plate is developed by using powder metallurgy technology. The new pantograph slide plate consists of copper, carbon fiber and graphite, etc. Firstly, the influences of pressure and sintering temperature on the performance of pantograph slide plate are studied. Then, its performances of friction, abrasion and conductance are tested. Finally, the performance of the new pantograph slide plate is compared with that of current pantograph slide plates. The results show that the optimal condition of preparing slide plate is:copper content 78 %, carbon fiber content 2 %, graphite content 15 % ,additive content 5%, pressure 200MPa and sintering temperature 880℃. Its resistance is very low. And its performance of friction, abrasion and impact toughness etc. are improved greatly as compared with foreign immersed metal carbon slide plate Rh82Mb with friction coefficient reduced by 20%, abrasion ratio decreased by 1.3%, impact toughness increased by 1.7 times and conductance increased by 65 times.