本文關(guān)鍵詞： 摩擦磨損 蛇紋石 催化劑 自修復(fù)　出處：《北京交通大學(xué)》2012年碩士論文　論文類型：學(xué)位論文

【摘要】：蛇紋石金屬磨損自修復(fù)劑以潤滑油為載體,能顯著改善摩擦表面的摩擦學(xué)性能,并延長機械設(shè)備的使用壽命。本文通過改變摩擦副的接觸形式(點、線、面接觸)、載體油的種類和摩擦副的材料,研究了蛇紋石粉體及其與不同催化劑的組合物作為潤滑油添加劑對減摩抗磨性能的影響,得出主要結(jié)論如下： 1.在Plint摩擦磨損試驗機上進行了三銷盤面接觸試驗,結(jié)果發(fā)現(xiàn),相比于只添加蛇紋石而言,添加蛇紋石粉體與催化劑1組合而成的復(fù)合粉體1能有效地提高摩擦系數(shù)的穩(wěn)定性,并降低試驗機的振動。 2.在UMT-3摩擦磨損試驗機上進行了球盤點接觸試驗,結(jié)果表明,下試樣材料為45鋼或鑄鐵時,蛇紋石粉體作為潤滑油添加劑比CD50潤滑下增大了磨損量,復(fù)合粉體1比蛇紋石粉體有效的降低了磨損量；載體油為75W/90得到的結(jié)論相似,即復(fù)合粉體1比蛇紋石粉體作為潤滑油添加劑潤滑下的磨損量小 3.在M2000摩擦磨損試驗機上進行了環(huán)塊線接觸試驗,載體油為46液壓油時,由蛇紋石粉體與催化劑2組合而成的復(fù)合粉體2對減摩性沒有作用,催化劑2的引入使得磨損量增大,且復(fù)合粉體2中催化劑2的配比越高,磨損量越大；當(dāng)載體油為CD50柴油機油時,含蛇紋石粉體的潤滑油增大了試樣塊的磨損量,減少了試樣環(huán)的磨損量；作為潤滑油添加劑,催化劑2與蛇紋石粉體相比,試樣塊和環(huán)的磨損量變大,復(fù)合粉體2對塊和環(huán)試樣的磨損量介于單獨添加催化劑2和蛇紋石粉體之間；當(dāng)催化劑2和蛇紋石粉體的比例為1：1時,減摩效果最好,摩擦系數(shù)較CD50單獨潤滑下降低了2.59倍。 本文初步找到有效減摩抗磨的自修復(fù)粉體配方,對今后的工業(yè)應(yīng)用具有重要的作用。
[Abstract]:With lubricating oil as the carrier, serpentine metal wear self-repairing agent can significantly improve the tribological properties of friction surface and prolong the service life of mechanical equipment. In this paper, the contact form (point, line, line) of friction pair is changed. In this paper, the effects of serpentine powder and its composition with different catalysts on antifriction and antiwear properties of surface contact oil, carrier oil and friction pair are studied. The main conclusions are as follows:. 1. The triple-pin disk contact test was carried out on Plint friction and wear tester. The results showed that the stability of friction coefficient could be effectively improved by adding the composite powder of serpentine powder and catalyst 1, compared with only adding serpentine. And reduce the vibration of the tester. 2. The point contact test of ball disk was carried out on UMT-3 friction and wear tester. The results show that when the lower sample material is 45 steel or cast iron, the wear rate of serpentine powder as lubricating oil additive is higher than that under CD50 lubrication. The composite powder 1 was more effective than serpentine powder in reducing the wear rate, and the conclusion of 75 W / 90 of carrier oil was similar, that is, the wear amount of composite powder 1 was lower than that of serpentine powder as lubricating oil additive. 3. The linear contact test of ring block was carried out on M2000 friction and wear tester. When the carrier oil was 46 hydraulic oil, the composite powder 2 composed of serpentine powder and catalyst 2 had no effect on the antifriction property, and the addition of catalyst 2 increased the wear rate. When the carrier oil is CD50 diesel engine oil, the lubricating oil with serpentine powder increases the wear amount of the sample block and reduces the wear amount of the sample ring. Compared with serpentine powder, the wear amount of sample block and ring of catalyst 2 is larger, and the wear amount of composite powder 2 pair and ring sample is between the single catalyst 2 and serpentine powder, when the ratio of catalyst 2 and serpentine powder is 1: 1, The friction coefficient is 2.59 times lower than that of CD50 alone. In this paper, the formula of self-repairing powder for anti-friction and anti-wear is preliminarily found, which plays an important role in industrial application in the future.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2012
【分類號】：TH117.1

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