Experimental Study on Improving the Bearing Raceway’s Surface Morphology
会议名称：《Fifth International Conference on Surface Engineering》
会议日期：2007年
学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 080201[工学-机械制造及其自动化]
关 键 词：Surface Morphology Bearing Nanocomposite Material Grinding Reagent
摘 要：The surface morphology of raceway is one of the key factors for the bearing’s vibration and *** paper proposes a novel method,which is using the nanocomposite chemical grinding reagent to deal with the surface of the bearing’s friction *** the nanocomposite material’s physical and chemical characteristics,the method integrates the mechanical grind and chemical abrasion to effectively improve the surface morphology of the scroll raceway and body for reducing the running vibration and *** the processing,nanocomposite materials not only have the mechanical grinding effect but also have the electrochemical *** the friction pair and the grinding reagent,there are energy exchange and mass *** the positive mechanical gradient’s metal protective film,the adsorbed deposit film and the chemical adsorbed surface film are formed on the friction surfaces,which can repair the friction pair’s wearing and corrosion,called the self-repairing effect on *** on analysis,we find this self-repairing is a kind of conditional *** friction pair’s relative motion and the reagent are the necessary conditions for self-repairing,and the nanocomposite materials have the significant effect on forming the self-repairing *** film not only can resist friction but also can compensate the wear *** the paper,we detailedly account the grinding mechanism,the characteristics and function of each grinding material,and the new method’s processing *** the difference from the bearing slices’ surface morphology between the fore and after grinding,we get the experimental findings:the roughness of the scroll surface Ra is decreased from 0.24592 μm to 0.17423 μm and Ry is decreased from 3.68 μm to 1.54 μm,which means the bearing’s surface morphology is effectively improved;Using the environmental scanning electron microscopy to observe the microscopic changes of the surface morphology,we pleasantly find the obviou