CAJ | 학술논문

为了优化拖缆机刹车部件的设计参数，同时进一步提高刹车片的耐磨性能，采用MPV-600型磨粒磨损试验机研究无石棉树脂摩擦片和黄铜试样与45＃钢配副在干摩擦条件下的摩擦学性能，利用体式显微镜观察试样的磨损形貌并分析其磨损机制。结果表明：摩擦热引起的温升导致的硬度下降及磨损机制的改变是干摩擦条件下摩擦片磨损的主要原因；树脂刹车片的耐热性能、耐磨性能均好于黄铜试样，树脂刹车片与钢配副的摩擦因数主要是由树脂刹车片中的铜纤维材料决定的；干摩擦条件下树脂摩擦片的磨损机制是以磨粒磨损和氧化磨损为主，而黄铜试样以磨粒磨损和黏着磨损为主。
위료우화타람궤찰차부건적설계삼수，동시진일보제고찰차편적내마성능，채용MPV-600형마립마손시험궤연구무석면수지마찰편화황동시양여45＃강배부재간마찰조건하적마찰학성능，이용체식현미경관찰시양적마손형모병분석기마손궤제。결과표명：마찰열인기적온승도치적경도하강급마손궤제적개변시간마찰조건하마찰편마손적주요원인；수지찰차편적내열성능、내마성능균호우황동시양，수지찰차편여강배부적마찰인수주요시유수지찰차편중적동섬유재료결정적；간마찰조건하수지마찰편적마손궤제시이마립마손화양화마손위주，이황동시양이마립마손화점착마손위주。
To improve the wear resistance of resin brake pads made of resin and brass in the towing engine,the wear be-havior of Brass and Brass/Resin blends was investigated in the MPV-600 type abrasive wear tester under dry sliding.Worn morphology of the brake pad surface was observed using the stereo microscope in order to analyze the wear mechanism.Ex-perimental results show that the decrease in hardness and the change in wear mechanism because of the temperature rise caused by frictional heat are the main reason of the wear of resin brake pads under dry friction.Brass/Resin blends has better heat resistance and wear resistance than Brass sample.The friction coefficient of the friction pairs of resin brake pads and steel is mainly determined by copper mesh material.The wear mechanism is abrasive wear and oxidative wear for the friction pairs of Brass/Resin blends and 45 steel,and abrasive wear and abrasive wear for the friction pairs of brass and 45 steel under dry sliding.