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首页> 外文会议>Leeds-Lyon Symposium on Tribology; 19990914-17; Leeds(GB) >The Effect of HFC Refrigerant Dissolution on Oil Film Thickness and Wear Characteristics of Oils
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The Effect of HFC Refrigerant Dissolution on Oil Film Thickness and Wear Characteristics of Oils

机译：HFC制冷剂溶解对油膜厚度和油的磨损特性的影响

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摘要

The influence of dissolved refrigerant HFC134a on oil film formation and wear performance of oils was investigated using a ball-on-type tester in a reciprocating motion. Oil viscosity considerably decreased by dissolving HFC134a and the extent of reduction in viscosity was affected not only by HFC concentration but also by the mean molecular weights of the oils. The reduction in oil viscosity by dissolved HFC134a brought about increase in wear amount. The oil film formation in a reciprocating motion was affected by the stroke length. In the present tests, by reducing the stroke length from 5 mm to 3 mm, the oil film formed in an initial stage became smaller, and finally collapsed. The oil collapse was happened when the cavitaion which generated in the vicinity of stroke center remained at the stoke ends.
机译：使用往复式球形测试仪研究了溶解的制冷剂HFC134a对油膜形成和油的磨损性能的影响。通过溶解HFC134a，油粘度显着降低，并且粘度降低的程度不仅受HFC浓度的影响，还受油的平均分子量的影响。溶解的HFC134a引起的油粘度降低导致磨损量增加。往复运动的油膜形成受行程长度的影响。在本试验中，通过将行程长度从5mm减小到3mm，在初始阶段形成的油膜变小，最终塌陷。当在行程中心附近产生的空化现象留在行程末端时，发生了油崩塌。

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