ISSN   1004-0595

CN  62-1224/O4

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条状亲油表面的润滑特性试验研究

Experimental Study on the Lubrication of Surfaces with an Oleophilic Strip

  • 摘要: 分别利用疏油薄膜和梳齿形凹槽队列织构,在钢表面的润滑轨道上围成了两类条状亲油区. 试验表明,两类条状亲油区对置于其上的润滑油滴有明显约束作用,限制润滑油向润滑轨道之外的区域铺展. 在有限供油条件下,对两类条状亲油区表面与钢球组成的摩擦副进行了测量,结果表明两类表面在混合润滑区均具有较低的摩擦力和磨损. 将试验结果归因于条状亲油区边界处润滑油所受的表面力不同,从而润滑轨道自集油能力得到增强. 最后,用光弹流试验证实了条状亲油区对摩擦副供油的改善.

     

    Abstract: Two types of oelophilic strips were obtained on the lubrication track of a steel plate by arranging designed oleophobic layers and queues of comb-tooth-shaped grooves, respectively. Tests showed that the two oleophilic strips were capable of pinning oil droplets thereon, restricting the spread of oil to the outside of the lubrication track. Under conditions of limited oil supply, the tribo-pair by a steel ball against the surface with an oleophilic strip was measured, and the results showed that the oleophilic strips generated low friction and wear in the mixed lubrication regime. Those experimental results were attributed to the different surface forces applied to the oil on the boundary of the strip-shaped lipophilic area, so that the oil replenishment of the lubrication track was enhanced. Finally, some optical EHL tests were carried out to confirm the improvement of the oil supply by the oleophilic strip.

     

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