CAJ | 학술논문

为提高现代密封行业中广泛应用的新型聚氨酯（ PU）和聚四氟乙烯（ PTFE）的密封性能，对其润湿性和摩擦磨损性能进行对比实验，并分析不同摩擦状态下的磨损性能，讨论接触压力和转速的影响。研究表明，聚氨酯的润湿性比聚四氟乙烯好；聚氨酯的耐磨性明显高于聚四氟乙烯，在干摩擦、滴油润滑和浸油润滑的试验条件下，聚氨酯都无明显磨损。干摩擦条件下，聚四氟乙烯的磨损主要受摩擦环转速的影响；滴油润滑条件下，摩擦环转速和接触压力对聚四氟乙烯的磨损都有一定影响；浸油润滑条件下，聚四氟乙烯的磨损主要受接触压力的影响。
위제고현대밀봉행업중엄범응용적신형취안지（ PU）화취사불을희（ PTFE）적밀봉성능，대기윤습성화마찰마손성능진행대비실험，병분석불동마찰상태하적마손성능，토론접촉압력화전속적영향。연구표명，취안지적윤습성비취사불을희호；취안지적내마성명현고우취사불을희，재간마찰、적유윤활화침유윤활적시험조건하，취안지도무명현마손。간마찰조건하，취사불을희적마손주요수마찰배전속적영향；적유윤활조건하，마찰배전속화접촉압력대취사불을희적마손도유일정영향；침유윤활조건하，취사불을희적마손주요수접촉압력적영향。
To improve the seal performance of new?type polyurethane(PU)and polytetrafluoroethylene(PTFE)widely used in modern seal industry,contrast experiments of the wettability and the tribological performance were carried out.The wear property under different frictional status was analyzed,and the effects of contact pressure and rotational speed were discussed.The results indicate that the wettability of PU is higher than that of PTFE.The wear resistance of PU is obviously better than that of PTFE,and the PU surface has no obvious wear under the experimental conditions of dry friction,drip lu?brication and oil lubrication.Under the dry friction condition,the wear loss of PTFE is mainly affected by the speed of fric?tional ring;Under the drip lubrication condition,the rotating speed of friction ring and the contact pressure have an effect on the wear loss of PTFE to some extend;Under the oil lubrication condition,the wear loss of PTFE is mainly affected by the contact pressure.