摘要
为解决电气化铁路提速带来的机车受电弓滑板材料问题,介绍了近年来开发的Ti3SiC2新型材料。针对滑板材料的基本使用要求,对Ti3SiC2材料的综合性能与正在使用或开发的碳基、铜基及铁基材料进行了全面比较,并对Ti3SiC2材料的制备方法、微观结构、自润滑机理和导电机理做了简要说明。研究结果表明,Ti3SiC2材料的强度、电阻率和自润滑性等关键性能指标明显优于碳基材料和国内外使用的其他受电弓滑板材料,特别是耐高温性、抗氧化性及可加工性,后者不能与之相比。通过进一步的技术转化,将Ti3SiC2材料成功用于制作高速电力机车的受电弓滑板是可以期待的。
For solving problems caused by speed-uping of electrified railway in contact strip materials of locomotive' s pantograph, a novel material Ti3SiC2 developed in the recent years is introduced. Overall comparisons were made for comprehensive properties of Ti3SiC2 materials with carbon-base, copper-base as well as iron-base materials that are used or developing now, mainly against the essential operation requirements of contact strips materials. Furthermore, some processing techniques, microstructures, self-lubrication mechanisms and electric conduction mechanisms of Ti3SiC2 materials were briefly explained. The results showed that, Ti3SiC2 materials in key indexes of property such as strength, resistivity and self-lubrication obviously outstrip carbon-base materials and other contact strips materials that have been used at home and abroad, particularly the thermostability, the oxidation-resistance and the machinability. It can be expected that, through further conversion of technique, Ti3SiC2 materials will be successfully used to manufacture contact strips of pantograph for high-speed electric locomotives.
出处
《机车电传动》
北大核心
2003年第B12期43-45,共3页
Electric Drive for Locomotives
