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首页> 外文会议>Proceedings of remanufacturing international forum 2012 >Investigation on Characteristics of Wear Debris in Lubricating Oil of Different Wear Periods
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Investigation on Characteristics of Wear Debris in Lubricating Oil of Different Wear Periods

机译：不同磨损时期润滑油中磨屑特征的研究

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An experiment that 5 used lubricating oil samples which gathered according to a certain time-interval analyzed by analytical ferrography was conducted.The characteristics of wear debris extracted from the oil samples were investigated.The physical characteristics including the size,color and shape were observed that the wear debris on ferrograms were examined by SEM to identify the wear micro mechanism and the type of particles.The chemical characteristics of wear debris such as the elements and contents were investigated by EDS.The results show that the main debris in running-in wear are metal particles generated by some wear types like cutting,sliding,fatigue and adhesion wear as well as some impurities mainly contains sand and mineral dust; Wear particles in normal wear period usually are tiny and slender for the were type are mild sliding and fatigue; Debris in abnormal wear are friction polymers,exogenous impurities and metal particles and the wear types are fatigue,cutting,erosive,sliding and adhesion.The tendency of wear debris size during lubricating oil life is that the size of wear debris is small in the early time of running-in wear period then gets bigger till reach a certain maximum while the particle in normal wear is homogeneous and tiny until the coming of abnormal wear in which the debris becomes bulky and non-homogeneous.In addition,the tendency of debris' content has some similarities with the size.
机译：进行了5次按一定时间间隔收集的润滑油样品的分析铁素体分析实验，研究了从润滑油样品中提取的磨屑的特征，观察了其物理性质，包括尺寸，颜色和形状。用扫描电镜（SEM）检查了铁屑上的磨屑，以识别磨屑的微观机理和颗粒类型。通过EDS对磨屑的化学特性（如元素和含量）进行了研究，结果表明磨合磨损中的主要磨屑为是由于某些磨损类型（例如切削，滑动，疲劳和粘附磨损）产生的金属颗粒，并且一些杂质主要包含沙子和矿物粉尘；正常磨损期间的磨损颗粒通常很小且较细，而轻度滑动和疲劳则为细颗粒。异常磨损中的碎屑是摩擦聚合物，外来杂质和金属颗粒，磨损类型是疲劳，切削，侵蚀，滑动和粘附。润滑油寿命期间磨损碎屑的尺寸趋势是早期的磨损碎屑尺寸较小。磨合期的时间变大，直至达到一定的最大值，而正常磨损的颗粒均匀且细小，直到异常磨损的到来，在此期间，碎屑变得笨重且不均匀。内容与大小有一些相似之处。

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