- 學位論文
摩擦界面間陶瓷微粒磨潤行為之動態監控研究
A Study on Dynamic Monitoring the Tribological Behaviors of Micro Ceramic Particles between the Frictional Interfaces
摘要
本研究團隊過去已成功發展摩擦帶電機制成為動態監控金屬薄膜磨潤性質的新方法，並且發現不管是就靈敏性或判別性之考量，上述此種新方法均優於傳統以摩擦係數監控的方式，但卻因導電特性之限制而只侷限在導體對導體材料之配對。因此進一步發展以接觸電阻動態監控金屬對金屬於空氣中磨潤特性及磨耗機制，並判斷界面間化學反應物是有必要的。本研究擬進一步利用往復摩擦試驗機暨量測系統，動態量測高黏度油中添加氧化鋁微粒後摩擦界面間的接觸電阻及摩擦係數，以監控不鏽鋼配對之磨潤特性的影響，並同時量測磨耗損失量及以SEM觀察微米級材料轉移現象。未來將可根據本研究成果而詳細探討液動拋光滾珠螺桿過程的磨潤行為。 本研究大致分為三大部分：第一，使用接觸電阻與摩擦係數來動態監控基礎油中鈦自配於速度效應下之磨耗行為，並與純水中之情況作比較；第二，動態監控不同黏度基礎油中SUS304自配於不同荷重及往復速率下之磨耗行為，作為研究氧化鋁微粒影響性之基礎；第三，動態監控氧化鋁磨料中SUS304自配對於面壓及速度效應之磨潤特性，並與純油下作比較。以上這些動態監控SUS304配對於氧化鋁磨料中之磨潤特性的研究成果，將可提供未來多項新式潤滑劑研發之參考依據。
並列摘要
The novel method of using continuous tribo-electrification variations to monitor the dynamic tribological properties between metal films has been applied successfully by the authors. The method was shown to produce clear and strong signals, superior to monitoring continuous friction coefficient variations. However, the above method was only shown to be suitable for the tested metal pairs that were studied. Therefore, it was necessary to investigate the method of using electrical contact resistance variations for monitoring the tribological properties, the wear mechanisms and the chemical reactions between the interfaces of metal pairs. The study was based on the above statements and conducted on a purposed-designed friction tester with a suitable measuring system. In order to investigate the effect of Al2O3 particle on the tribological characteristics of self-mate stainless steel pair under oil lubrication, the continuous variations of electrical contact resistance and friction coefficient were measured. Wear loss was measured by an accuracy balance and scan electron microscopy was used to observe the microstructures and of material transfer. All of the experimental results can be used to investigate the tribological behaviors of the ballscrew under hydrodynamic polishing. This study can be divided into three parts: firstly, the electrical contact resistance and the friction coefficient were dynamic measuring to monitor the wear mode of self-mated titanium in the base oil under different speed. Secondly, the wear mode of self-mated SUS304 in various base oil under different load and speed was dynamic monitoring to investigate the effects of Al2O3. Thirdly, the tribological properties of self-mated SUS304 in various concentration of Al2O3 abrasive were dynamic monitoring to compare with that in the pure oil. All of the above results will be very helpful for the developments of novel lubrication in the future.