2017年 10月第31卷第5期装甲兵工程学院学报Journal of Academy of Armored Force Engineering Oct． 2017Vol．31No．5 文章编号:1672-1４97(2017)05-010４-05
碳纤维/碳基湿式摩擦材料的摩擦学性能
李 辉1，杜建华1，王浩旭1，蒋守林2
(1．陆军装甲兵学院科研学术处，北京100072;2．杭州前进齿轮箱集团股份有限公司，浙江杭州311203)摘 要:针对现有湿式摩擦材料耐热性能无法满足高能量密度传动系统使用要求的问题，采用树脂浸渍碳化工艺制备了一种新型碳纤维/碳基(Carbon Fiber reinforced /Carbon-based，CF /C)湿式摩擦材料，并对其进行了摩擦磨损试验二耐热性能试验二表面形貌分析以及磨损机理分析三结果表明:CF /C 湿式摩擦材料的摩擦因数为0．10~0．11，波动范围小于４%;扭矩曲线平滑，制动平稳性好;体积磨损率为2．2?10-9cm 3/J;耐热系数为1．0?105J 2/(cm ４四s);磨损机理为磨粒磨损二犁沟磨损和热疲劳磨损三
关键词:碳纤维/碳基湿式摩擦材料;树脂浸渍碳化工艺;摩擦因数;体积磨损率;耐热系数
中图分类号:TＨ117．1;TB322 文献标志码:A DOI :10．3969/j．issn．1672-1４97．2017．05．020
Tribological Properties of Carbon Fiber Reinforced /Carbon-based (CF /C )Wet Friction Material
ＬI Ｈui 1，DU Jian-hua 1，WANG Ｈao-xu 1，JIANG Shou-lin 2
(1．Scientific Research and Academic Department，Army Academy of Armored Forces，Beijing 100072，China;2．Ｈangzhou Advance Gearbox Group Co．Ｌtd，Ｈangzhou 311203，China)Abstract :To solve the existing problem of insufficient thermal-resistance of friction material and to adapt the demand of the transmission system for high energy density，a new type of CF /C (Carbon Fiber rein-forced /Carbon-based)wet friction material is prepared by resin impregnation carbonization process．The tribological properties and heat resistance of the material are tested．Meanwhile，the surface morphology and wear mechanisms are analyzed．The results show that the friction coefficient of CF /C wet friction ma-terial is 0．100．11，which fluctuation range is less than ４%;the torque curve is smooth for a stability braking;the volume wear rate is 2．2?10-9cm 3/J;the thermal-resistance coefficient is 1．0?105J 2/(cm ４四s);the wear mechanism is furrow wear，abrasive wear and thermal fatigue wear．
Keywords :Carbon Fiber reinforced /Carbon-based (CF /C)wet friction material;resin impregnation car-bonization process;friction coefficient;volume wear rate;thermal-resistance coefficient
收稿日期:20170703
基金项目:国家自然科学基金资助项目(51001117);军队科研计划项目(2015YC05)
作者简介:李 辉(1988)，男，博士研究生三 湿式摩擦材料是汽车传动二制动的关键材料，广泛应用于各种公路车辆二工程机械以及坦克装甲车
辆传动系统［13］三目前，应用较多的湿式摩擦材料有纸基摩擦材料［４］二树脂基摩擦材料［5］和湿式铜基
粉末冶金摩擦材料等［6］三但随着传动系统能量密度的增大，上述材料容易出现磨损率过高二摩擦材料
脱层二掉块和黏着损伤等失效现象［68］三因此，提高
湿式摩擦材料的摩擦磨损和耐热性能已成为研究热点［9］三如:宋晓东等［7］通过在纸基摩擦材料中添加短切碳纤维，使得其摩擦因数稳定，耐热系数显著提高，最高可达9．5?10４J 2/(cm ４四s);张兆民等［10］采用湿法工艺制备碳布增强树脂基摩擦材料，其耐热系数达9．3?10４J 2/(cm ４四s);杜建华等［11］分别利用纳米AlN 和纳米石墨制备增强铜基粉末冶金摩万方数据