Tribological Properties for Long Stroke Cylinder Using Nano-lubricants

長行程氣壓缸使用奈米顆粒潤滑油的磨潤特性分析

張合(Ho Chang) ； 藍冑偉(Chou-Wei Lan)

《中國機械工程學刊》 29卷6期 (2008/12) Pp. 503-508

https://doi.org/10.29979/JCSME.200812.0009

摘要

本文主要研究奈米顆粒潤滑油對於長行程氣壓缸的磨潤特性與黏滯現象進行分析，利用真空潛弧放電加工法將氧化銅及二氧化鈦的奈米顆粒添加於三點組合潤滑油中，並操作自行架設之長行程氣壓缸在不同壓力與潤滑油等條件下，觀察初始作動及其摩擦力的變化關係。在長行程氣壓缸之動態量測控制模擬平台中，架設行程為兩米一之氣壓缸，氣壓缸作動時會推動一負載使其行進，並在進氣的同時，利用流動的空氣將潤滑油加壓成霧狀噴灑在氣壓缸內，藉由拉線式編碼器量測記錄氣壓缸作動之位置及速度變化，其資料透過A/D轉換卡及計數卡傳送至電腦，使用自行設計之人機介面程式控制氣壓缸之作動並記錄壓力、位置資料，再經由數值運算，求得其摩擦力。由分析結果發現，添加氧化銅及二氧化鈦奈米顆粒於潤滑油中均能有效的減少摩擦力及降低黏滯滑動現象。本文除了對測試方法有深入探討外，亦著重摩潤特性的分析，以期獲得在長行程氣壓缸中使用奈米顆粒潤滑油的特性，以供長行程氣壓缸系統磨潤改進之依據與參考。

並列摘要

This paper analyzes the tribological properties and stick-slip phenomenon of the long stroke pneumatic cylinder by using nanoparticles as additives in lubricant. An innovative system, Submerged Arc Nanoparticles Synthesis System (SANSS) was used to prepare CuO and TiO2 nanoparticles, which were then mixed with lubricant. In the measurement system, a cylinder at a stroke of 2.1m was used to support a load. And a draw wire encoder was set on the measurement system to measure the position and velocity of the piston motion. The data of the measurement system were entered into the computer via A/D card and counter card. A home-made program was used to control the piston motion, save the data of the pressure and position of the cylinder, and calculate the frictional force of the cylinder. The experimental results show that using CuO and TiO2 nanoparticles as additives in lubricant can reduce the frictional force and improve the tribological properties of the cylinder in the pneumatic system.

並列關鍵字

long stroke cylinder ； tribological properties ； nanoparticle