摘要
通过化学气相渗透(CVI)法结合反应熔体浸渗(RMI)法制备了三维针刺C/C-SiC-FeSi_2复合材料,系统研究了C/C-SiC-FeSi_2对比C/C-SiC复合材料在干燥和潮湿2种制动工况下的摩擦性能。结果表明:在干燥工况下,C/C-SiC-FeSi_2对比C/C-SiC复合材料在不同制动初速度下摩擦系数更接近于既有高速动车组钢质摩擦副,摩擦系数相对稳定且具有较低磨损率;在潮湿工况下,C/C-SiC-FeSi_2摩擦性能未出现衰减,且比C/C-SiC摩擦系数更稳定。
Three-dimensional armature C/C-SiC-FeSi2 composite material is made by chemical vapor infiltration(CVI) and reactive melt infiltration(RMI). The paper carries out systematic study on the friction property of C/C-SiC-FeSi2 and C/C-SiC composite material under two brake working conditions. The results show that compared with C/C-SiC composite material, the friction coefficient of C/C-SiC-FeSi2 under different brake speeds and dry working condition is close to the steel friction pair of existing high speed EMU, featuring relative stability and lower wear rate. While under wet working condition, the friction property of C/C-SiC-FeSi2 does not decay and is more stable compared with C/C-SiC.
作者
焦标强
JIAO Biaoqiang(Locomotive&Car Research Institute,China Academy of Railway Sciences Corporation Limited,Beijing 100081,China;Beijing Zongheng Electro-Mechanical Technology Co Ltd,Beijing 100094,China)
出处
《中国铁路》
2019年第3期61-66,共6页
China Railway
基金
中国铁路总公司科技研究开发计划项目(2016J011-F)
