本文選題：固體潤滑涂層　切入點：減摩　出處：《合肥工業(yè)大學》2015年碩士論文　論文類型：學位論文

【摘要】：固體涂層潤滑是一種非常重要的固體潤滑方式,因其優(yōu)異的摩擦學性能被廣泛應用于航空航天、船舶、車輛等高技術工業(yè)的各個領域。隨著工業(yè)的進步發(fā)展,不斷對固體潤滑涂層的使用性能提出新的要求,普通涂層的各方面性能都需要提高。環(huán)氧樹脂涂層因其工藝性好、成本低等原因被廣泛應用于滑動軸承、軸瓦等摩擦副零件,但普通環(huán)氧樹脂涂層的耐熱性差,承載能力不高,應用受到限制。因此對環(huán)氧樹脂涂層的耐熱、耐磨特性的改進與研究具有很大的研究價值。本論文首先通過摩擦磨損實驗研究考察E54環(huán)氧樹脂、F51酚醛環(huán)氧樹脂、SKE環(huán)氧樹脂涂層的摩擦學性能,優(yōu)選了SKE環(huán)氧樹脂作為膠黏劑并進一步優(yōu)化其固化工藝及固化劑含量。在此基礎上進行受熱分析和變溫摩擦磨損實驗,探討了溫度對涂層綜合性能的影響。并針對樹脂涂層隨溫度升高耐磨性變差的缺陷,在基礎配方中進一步添加碳纖粉,改善其耐磨性,深入考察了碳纖粉對涂層摩擦學性能的影響。最后通過光學顯微鏡、SEM、能譜成分分析等進一步研究粘結潤滑涂層的摩擦磨損特性機理。通過系列化實驗分析,以最優(yōu)的涂層附著強度和摩擦磨損性能為標桿,完成了SKE環(huán)氧樹脂基減摩自潤滑涂層的制備工藝技術研究。在不同溫度下對E54、F51和SKE三種樹脂涂層的性能進行綜合比較,結果表明SKE涂層具有很好的耐熱性,直至300℃都能夠保持較好的粘結強度、較優(yōu)的摩擦學性能。通過摩擦磨損機理探討,從理論上分析了適量添加碳纖粉增強填料對提高SKE環(huán)氧樹脂基減摩自潤滑涂層耐磨性的重要性。并通過碳纖粉顆粒度和添加比例的實驗優(yōu)化,獲知添加3%的600目碳纖粉,可以使SKE樹脂自潤滑涂層的減摩和耐磨性能達到最佳。通過共同努力,現(xiàn)已促使該研究成果在合作單位獲得的實際應用。
[Abstract]:Solid coating lubrication is a very important method of solid lubrication. Because of its excellent tribological properties, it is widely used in various fields of high-tech industries, such as aerospace, ships, vehicles and so on. New requirements for the performance of solid lubricating coatings have been put forward, and the properties of common coatings need to be improved. Epoxy resin coatings are widely used in friction pairs such as sliding bearings and bearing bearings because of their good technological properties and low cost. However, the common epoxy coating has poor heat resistance, low bearing capacity and limited application. In this paper, the tribological properties of E54 epoxy resin F51 phenolic epoxy resin / SKE epoxy coating were investigated by friction and wear experiments. SKE epoxy resin was selected as adhesive and its curing process and curing agent content were optimized. On the basis of this, thermal analysis and friction and wear experiments at variable temperature were carried out. The effect of temperature on the comprehensive properties of the coating was discussed. In order to improve the wear resistance of the resin coating, carbon fiber powder was added to the basic formula to improve the wear resistance of the resin coating. The effect of carbon fiber powder on the tribological properties of the coating was investigated in depth. Finally, the friction and wear mechanism of the adhesive lubricating coating was further studied by means of optical microscope (SEM) and energy dispersive composition analysis (EDS). With the optimal adhesion strength and friction and wear performance of the coating as the benchmark, the preparation technology of the antifriction self-lubricating coating based on SKE epoxy resin was studied. The properties of E54F51 and SKE resin coatings were comprehensively compared at different temperatures. The results show that the SKE coating has good heat resistance, and can maintain better bond strength and better tribological properties up to 300 鈩，

本文編號：1594096