(北京科技大學 材料科學與工程學院，北京 100083)
摘 要: 采用四球摩擦磨損試驗機分別考察新型磷系與含氮硼酸酯極壓抗磨劑以不同質量分數(shù)復配后在銅箔軋制油中的摩擦學特征，利用掃描電子顯微鏡(SEM)觀察磨斑表面形貌，利用能譜分析儀(EDS)分析磨斑表面附著物的組成，并通過冷軋實驗研究銅箔軋制摩擦磨損與潤滑性能的關系。基于表征潤滑性能的最大無卡咬負荷、摩擦因數(shù)和磨斑直徑3 個參數(shù)，提出了分析潤滑劑摩擦學性能新指標——極壓抗磨潤滑系數(shù)Ω。結果表明：新型氮磷添加劑在金屬表面發(fā)生摩擦化學反應形成摩擦化學產(chǎn)物是提高其抗磨減摩性能的根本原因。銅箔與軋輥之間的磨損機制有黏著、犁削和剝離等形式，其中黏著磨損起主導作用；Ω 代替四球測試的結果能較好地解決軋制過程的摩擦磨損問題。
關鍵字: 銅箔；添加劑；摩擦；極壓抗磨潤滑系數(shù)；黏著磨損
（School of Materials Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China）
Abstract:The tribological characteristics of copper foil rolling oil adding a new kind of phosphorus and nitrogen-containing borate acid ester as extreme-pressure and anti-wear additives with different mass fractions of compounded system were investigated using a four-ball friction and wear tester. The surface morphologies of wear scars were observed by scanning electron microscopy (SEM),and the composition of its surface attachments was analyzed with energy dispersive spectrometer (EDS). The relationship between friction and wear and the lubricating performances were studied through copper foil rolling experiments. Based on the maximum no-seizer load,friction coefficient and wear scar diameter,a new performance indicator,the extreme pressure anti-wear lubrication coefficient,Ω,is put forward to analyze the lubrication properties of lubricant. The results show that the increase of the wear-resistance and antifriction is mainly attributed to the tribochemical products of the reaction between nitrogen and phosphorus additives on the surface of the metal. The wear mechanisms of copper foil and roll contain adhesive,plowing,peeling and others,in which adhesive wear plays a leading role. Ω is better to solve the problem of friction and wear during rolling instead of the four-ball test results.
Key words: copper foil; additive; friction; extreme-pressure and anti-wear lubrication coefficient; adhesive wear
