动车组碳陶(C/C-SiC)制动盘开发与特性研究  

Development and Characterization of C/C-SiC Brake Disc for EMU

作　　者：钱飞飞 周华杉 史耀君 孟永帅 张宁 QIAN Feifei;ZHOU Huashan;SHI Yaojun;MENG Yongshuai;ZHANG Ning(CRRC Qishuyan Institute Co.,Ltd.,ChangZhou 213011 Jiangsu,China)

机构地区：[1]中车戚墅堰机车车辆工艺研究所股份有限公司,江苏常州213011

出　　处：《铁道机车车辆》2024年第4期36-43,共8页Railway Locomotive & Car

摘　　要：采用化学气相渗透法和反应熔体浸渗法组合工艺制备了缩比碳陶制动盘,盘体材料抗拉强度106 MPa、抗压强度355 MPa、抗弯强度195 MPa,垂直和水平方向导热系数分别为41.1、38.8 W/(m·℃),导热性与强韧性协调关系较好。匹配粉末冶金闸片开展了碳陶制动盘摩擦磨耗缩比试验,基于试验结果建立并修正了制动盘传热过程的有限元仿真模型。试验与仿真分析结果表明:碳陶制动盘的耐磨性和耐热性均较好,且对偶闸片摩擦系数稳定、磨耗量满足行业标准要求。A reduced-scale carbon/carbon-SiC brake disc was prepared by chemical vapor infiltration and reactive melt infiltration.The tensile strength,compressive strength and bending strength of disc material were 106 MPa,355 MPa and 195 MPa,respectively.The thermal conductivity in vertical and horizontal directions was 41.1 W/(m⋅℃)and 38.8 W/(m⋅℃),and the thermal conductivity was well coordinated with the strength and toughness.At the same time,the friction and wear shrinkage test of carbon/carbon-SiC brake discs was carried out with the powder metallurgy brake pads.Based on the test results,the finite element simulation model of the heat transfer process of the brake disc was established and modified.The test and simulation analysis results show that the wear resistance and heat resistance of carbon/carbon-SiC brake disc were good,and the friction coefficient of the dual pad was stable,and the abrasion loss met the requirements of industry standard.

关 键 词：碳陶制动盘 摩擦磨耗试验 有限元仿真 传热行为 

分 类 号：U270.35[机械工程—车辆工程]