【作者】 闫福刚；

【导师】 林彬；

【作者基本信息】 天津大学 ， 机械制造及其自动化， 2010， 硕士

【摘要】 近年来,考虑到水的低粘度与清洁性等特点,水润滑技术得到了迅速发展,但是由于水本身也存在着易锈蚀金属,水膜承载能力较低等问题,因此为适应工业应用,水需要做相应改性。本课题旨在研制一种新型绿色、粘度可控性流体润滑剂,并进行粘度、密度、比热及防锈性等相关性能测试;在此基础上对陶瓷摩擦副不同情况下进行摩擦磨损性能测试,最终得出最佳工程陶瓷摩擦副材料。本课题中水作了适当的改性,通过对润滑剂添加剂分析得出适合添加的水基防锈添加剂组分和消泡剂组分,形成新的水基润滑剂。将三乙醇胺硼酸酯、癸二酸三乙醇胺、油酸三乙醇胺三种有机防锈剂进行复配,同时选择有机硅类消泡剂进行消泡处理,它可以稳定地与润滑剂混合使用且具有良好的润滑性。通过防锈性能正交实验得出润滑剂的优选配方,确定出了各种添加剂的用量。对新型润滑剂的外观、透明度、消泡性、防锈性进行评价均合格。在新型水基润滑剂中通过添加粘度调节剂来改变润滑剂的粘度,通过粘度与温度实验得出温度升高,粘度减小;温度降低,粘度增大。低粘度润滑剂的粘温曲线比较平滑,性能比较优越。最后用最小二乘法进行MATALB曲线拟合。并且对润滑介质的密度和比热物理性能指标进行测试研究,得出新型水基润滑剂在室温下的密度和比热。课题中,分别对SiC和Si3N4两种工程陶瓷摩擦自配副在干摩擦、水润滑下和新型水基润滑液下进行实验研究。通过对SiC和Si3N4两种结构陶瓷磨损率和摩擦系数的分析测量,得出了最佳工程陶瓷的摩擦副材料。同时与水溶液相比,所配制的润滑剂体现出了更加的润滑性能。更多还原

【Abstract】 In recent years taking into account the low viscosity and spatter property of water,water lubrication technology has been developing rapidly. However, some problemsthat the water itself contains easily corroded metal and is in a lower carrying capacityof water film also exist. Thus in order to meet the industrial application thecorresponding modification of water needs to be done. This research project aims todevelop a new type of green liquid lubricant with the controllability of its viscosity,tests its viscosity, density, specific heat and anti-rust property and on this basis does aseries of test on friction and wear properties under different circumstances of ceramicfriction pairs and eventually arrives at the best engineering ceramic friction materials.In this project water was made an appropriate modification. Through the analysisof lubricant additives, suitable composition of water-based anti-rust additive andantifoamer is obtained, and a new water-based lubricant is formed. The research alsocontains mixing three kinds of organic anti-rust agents including triethanolamineborate, sebacic diacid triethanolamine and triethanolamine oleate and choosingsilicone defoamer for anti-foaming processing, which can mix with lubricants steadilyand is in good lubrication. By orthogonal experiments of Anti-rust properties,Optimization of lubricant formulations is gained, and the amount of various additivesis identified. And this project also evaluates the appearance, transparency, defoamingand antirust of the new lubricants, and gets good results.In the new water-based lubricant, viscosity is changed by adding aviscosity-adjusting agent. And the viscosity and temperature experiment also showsthat if temperature increases, viscosity decreases while if temperature decreases,viscosity increases. The viscosity-temperature curve of low-viscosity lubricants seemsmore smooth and its performance is more superior. At last, least-squares method isused to complete the MATALB curve fitting. Some research is also done on testingthe density of lubricant and the physical performance of the specific heat and thedensity and the specific heat of the new lubricant at room temperature is obtained.In this project, the aotogamia of the ceramics friction with two kinds ofengineering, SiC and Si3N4 is carried out. The research is done under the condition ofdry friction, water and the new water-based lubricant. Through the analysis and measurement on the wear rate and lriction coefficient of ceramics with these twokinds of structures, SiC and Si3N4, the best engineering ceramics friction material isfinally obtained. Meanwhile, compared with water, the new lubricant has betterlubrication.更多还原