再生润滑油理化性能分析与摩擦学性能评价

Analysis of Physical and Chemical Performances and Evaluation of Tribological Properties of the Reclaimed Oil

采用以絮凝分离工艺为主的技术对重载车辆用废CD 10W-40润滑油进行再生处理。对再生润滑油的透光率、黏度、污染度、腐蚀性等理化性能指标进行了测定,采用四球摩擦磨损试验机及扫描电子显微镜对其摩擦学性能进行了评价,并与废润滑油、新润滑油作对比分析。结果表明:再生润滑油的外观为棕黄色,透光率可达89.9%,接近新润滑油的96.7%,100℃运动黏度增至14.16mm2/s,污染度和腐蚀性明显降低;最大无卡咬负荷PB值提高到618N,摩擦因数及磨斑直径与新润滑油基本接近,再生润滑油的减摩抗磨性能得到了显著改善。使用含有氨基结构的有机絮凝剂达到了较好的再生效果。

The CD 10W-40 waste lubricating oil from a heavy vehicle engine was regenerated by mainly using the mainly flocculation-separation process. With related testing instruments, transmittances were measured. The physics and chemistry performances of the reclaimed lubricating oil such as viscosity, dustiness and corrosiveness were analyzed, which compared with the waste oil and the new oil. The tribological properties of different oils were investigated. The results showed that the reclaimed oil presents the tan-yellow color, transmittance can reach 89.90/00, approach 96.7%o of the new lubricating oil. 100 ~C kinematic viscosity increases to 14.16 mm2/s, pollution and corrosivity obviously decrease. PB value of the reclaimed oil increases to 618N, the friction coefficient and the wear scar diameter approaches to that of the new oil. The performance of reclaimed oil is close to the level of new oil. The flocculating agent can reach favorable effect.