【摘 要】
：
An experiment is conducted to investigate the effects of lubricant10#, which contains extreme pressure additives T304 and T305, on the rolling contact fatigue (
【机 构】
：
School of Mechatronics Engineering,State Key Laboratory of Solid Lubrication
论文部分内容阅读
An experiment is conducted to investigate the effects of lubricant10#, which contains extreme pressure additives T304 and T305, on the rolling contact fatigue (RCF) life of the contact pairs of a Si3N4 ceramic ball and a steel rod. The experimental investigation is carried out using a ball-rod RCF test rig. The results show that the extreme pressure additives increase the anti-contact-fatigue performance of ceramic balls; When the content of the additives varies from 1% to 5%, the increasing gradient of the RCF life curve decreases; And the oil sample with 1% T305 additive corresponds to the maximal gradient of the RCF life curve, with the RCF life being increased by about 10.77 times.The fatigue surface of the ceramic ball is analyzed with scanning electron microscope (SEM) and X-ray electron dispersion analysis(EDAX), and the physical model of extreme pressure additives'increasing the RCF life of the ceramic ball is proposed. It is found that the extreme pressure additives form a corrosive film and a transfer film on the surface of the ceramic ball, which decrease the surface tangential stress, and to increase the surface energy is the most effective means for increasing the RCF life.
其他文献
This paper proposes and analyzes a downlink multi-carrier proportional fair scheduler and an adaptive radio resource allocation algorithm combining the schedule
Finite element method was adopted to investigate the temperature profile during ultrasonic welding of PEEK (polyetheretherketone ). The comparison of temperatur
The operating temperature of a proton exchange membrane fuel cell stack is a very important control parameter. It should be controlled within a specific range,
目的:总结6例先天性主-肺动脉间隔缺损(APSD)超声心动图诊断的经验及教训.方法:2000年10月～2003年6月间经超声心动图诊断主-肺动脉间隔缺损的患儿6例,其中男4例,女2例;平均年
An integrative computer aided investment casting (CAIC) technology for making complicated superalloy castings was described. Key processes of CAIC were discusse
A passive visual sensing system is established in this research, and clear weld pool images in pulsed gas metal arc welding ( P-GMA W) can be captured with this
The technique state to design counter-current extraction columns is based on the performance of pilot plant experiments. The modelling is then either with the e
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7
Objective To observe the therapeutic effect of non-surgical treatment on diabetic Chinese with chronic periodontitis. Methods Moderate to advanced chronic perio
The Wide-Sense Stationary Uncorrelated Scattering (WSSUS) model has long been viewed as a basic channel model to describe the fading dispersive channel. But non