奈米粉末添加劑之潤滑油在純滑動及等/變滑滾動下傳動之咬合性能研究

Study on Scuffing Performance of Nanoparticle Additive Oil Under Pure Sliding and Constant/Variable Velocity Transmission

黃詩閔(Sze-Min Huang 黃詩閔)

指導教授 ： 黃社振

國立虎尾科技大學/工程學院/機械設計工程研究所/碩士(2011年)

摘要

本研究是主要是利用奈米黃金、奈米鉬和奈米碳球等分別加入潤滑油中以研究咬合破壞過程，利用多功能磨潤試驗儀包括以純滑動設計的Block-on-ring試驗，與等滑滾動與變滑滾動設計之Two-roller試驗，分別在不同純滑動速度、不同表面粗糙度與不同滑滾比，量測其咬合負荷、接觸溫度、電阻及振動頻率信號，觀察不同奈米添加劑之潤滑油抗咬合潤滑機理。並以液滴實驗為輔進一步觀察奈米添加劑之潤滑油的接觸特性。由實驗結果可以發現奈米黃金及奈米碳球添加劑之潤滑油的接觸角雖然相近，但其抗咬合性能受到奈米化學性影響有顯著差異，奈米鉬添加劑之潤滑油接觸角明顯大於奈米黃金和奈米碳球之添加劑潤滑油，並可發現其擴散趨勢較為緩慢顯示黏度較高的特性，可有效的包覆試片表面。奈米鉬相較於奈米黃金和奈米碳球添加劑之潤滑油明顯具有良好抗咬合性能，並發現在變動滑滾動磨耗試驗比等滑滾動更容易產生咬死現象。最後以掃描式電子顯微鏡(SEM)及(EDS)觀察咬合破壞表面與成份分析。

關鍵字

奈米粉末 ； 純滑動 ； 變滑滾動 ； 抗咬合性能 ； 表面粗糙度

並列摘要

The main purpose of this study is the use of nano-gold, nano-carbon ball and nano-molybdenum lubricant additive in order to understand its anti-scuffing performance. uses multi-function tribological tester apparatus including by the pure sliding design of Block-on-ring experiment and constant or variable slide to roll design Two-roller test, separately in the different pure sliding speed, the different surface roughness and different slide-roll ratio, measuring the scuffing load, contact temperature, resistance and vibration frequency signals by full understanding anti-scuffing lubricant lubrication mechanism at different nano-additives, and observes lubricating oil of the nanometer additive contact characteristic by the bubble experiment. The experimental results show that although the nano-gold and nano carbon ball contact angle of lubricant additives are similar, but the anti-scuffing performance of nano-chemical effects are significant differences, nano-Molybdenum additives significantly larger than the contact angle of nano-gold and nano carbon ball, and found that the tendency to spread more slowly shows the characteristics of high viscosity, can be effectively coated the surface of the specimen. Next, nano-gold and molybdenum compared to nano-carbon ball additives obviously has a good anti-scuffing lubricant performance, In the scuffing test, constant slide to roll transmission occur sizer more quickly variable slide to roll lubrication phenomena. Finally, the scuffing surface that take place during wear were characterized by using scanning electron microscopy and EDS

並列關鍵字

nano-particle ； pure sliding ； variable sliding-roll ； scuffing

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