半金属基粉末摩擦片摩擦磨损性能研究.pdf

2012年6
润滑与密封
June 2012
第37卷第6期
LUBRICATION ENGINEERING
o1. 37 No 6
DOI:10.3969/ ]. lssn.0254-0150.2012.06.015
半金属基粉末摩擦片摩擦黁损性能硏究
张亮刘利国郭杰王永林
(江南大学机械工程学院江苏无锡214122)
8摘要:在不同工况下研究半金属基粉末摩擦片与淬火45”钢配副时,载荷和转速对其摩擦磨损性能的影响,并分析8
其磨损机制。结果表明,在油润滑和水润滑下,半金属基摩擦片高速下的磨损量要明显低于低速下的磨损量,而干摩擦
下其高载高速下的磨损要高于高载低速时的磨损蚩。油润滑下随载荷的增大,半金属基摩擦片的摩擦因数逐渐升高;水
润滑下随载荷的増大,高速时摩擦因数先增大后减小,低速时则逐渐降低;干摩擦下随载荷的増大,高速时摩擦因数呈
现出先升高后降低再升高的趋势,低速时则先升高后降低。干摩擦时摩擦面十分粗糙,有比较明显的沟状磨痕和硬质颗
粒脱落后残留的凹坑;而水润滑和油润滑时摩擦面较为光滑
关键词:半金属基粉末摩擦片;干摩擦;水润滑;油润滑;摩檫磨损
中图分类号:TH17.1文献标识码:A文章编号:0254-0150(2012)6-065-4
Research on Friction and Wear Behavior of
Semi-metallic Powder Friction Plate
Zhang Liang Liu Liguo Guo Jie Wang Yonglin
School of Mechanical Engineering, Jiangnan University, Wuxi Jiangsu 214122, China)
Abstract: The effects to tribolog cal properties of semi-metallic powder friction plate against quenching of45 teel under
different working condition were studied by changing load and speed under sliding friction test, and the wear mechanism
was analyzed. The results demonstrate that the wear mass loss of semi-metallic powder friction plate under high-speed is
lower than that under low-speed in water lubrication and oil lubrication, but the wear mass loss under high-speed and high
load is lower than that under low-speed and high-load in dry friction. Fr ction coefficient of semi-metallic powder friction
plate is increased with load increasing in oil lubrication; increased first and then decreased under high-speed and gradually
decreased under low-speed with load increasing in water lubrication; increased first and then decreased and finally in
very coarse with Obvious groove grinding and pit as hard particle's falling off in dry friction, but the friction rfa ce
creased under high-speed, and increased first and then decreased with load increasing in dry friction. The friction surface
smooth in water and oil lubrication
Keywords: semi-metallic powder friction plate; dry friction; water lubrication; oil lubrication; friction and wear
半金属摩擦材料是20世纪70年代发展起来的
复杂的关系2,而且对磨损量也有显著的影响。可见
种新型制动材料。该材料以钢纤维代替石棉制成,半金属基粉末摩擦片的摩擦虅损机制是复杂的,因此
材料热稳定性和导热性好,耐磨性优越,克服了石棉对半金属基粉未摩擦片的研究就变得十分重要。
摩擦材料存在的热衰退严重、摩擦表面易开裂等缺
目前,陈平等人刚研究了纳米CaCO3半金属摩
点,广泛应用于机械压力机、粉末压机、剪切机械、擦材料摩擦蘑损性能,陈跃等人研究了SC颗粒增
造纸机械、橡塑机械、纺织机械、包装机械等机械的强铝基复合材料/半金属材料干摩擦蘑损特性。但对
干式离合器中。半金属基粉末摩擦片在摩擦磨损过程半金属基粉末摩擦片在工况下的摩擦麾损机制的研究
中,表面一般会伴有塑性以及产生氧化物。这些现象很少,本文作者以IZC系列干式离合器的半金属基
与滑动速度、压力、工作温度、材料本身的性能有着摩擦片为研究对象,研究其与淬火45“钢配副时,在
不同工况下的摩擦磨损行为,并初步探讨其摩擦磨损
收稿日期:2012-01-05
机制。
作者简介:张亮(1985-),男,硕士研究生,主要从事表面工1试验部分
程研究,E-mail:ssy40609142@sohu.com
摩擦磨损试验在MMW-1A万能摩擦磨损试验机