Solubility of HFC134a in Lubricants and Its Influence on Tribological Performance
Solubility of HFC134a in Lubricants and Its Influence on Tribological Performance
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HFC134a在润滑油中的溶解度及其对摩擦学性能的影响
DOI：
10.1080/10402000108982450
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发表时间：
2001
影响因子：
2.1
通讯作者：
Joong
中科院分区：
文献类型：
--
作者：
Y. Yamamoto;S. Gondo;Joong
通过测定润滑剂的溶解度、HFC 134 a/润滑剂混合物在往复运动中的粘度降低和油膜厚度变化，研究了溶解制冷剂HFC 134 a对HFC制冷剂润滑剂摩擦学性能的影响。还研究了铝合金在混合物中的磨损特性。结果表明，HFC 134 a在润滑油中的溶解是放热反应，其饱和溶解度随润滑油内聚能密度的增大而减小。粘度的降低不仅受润滑剂中HFC 134 a浓度的影响，而且受润滑剂的平均分子量的影响。HFC 134 a的溶解降低了润滑油的粘度，降低了油膜的厚度，使磨损特性变差。
The influence of dissolved refrigerant HFC134a on tribological performance of lubricants for HFC refrigerants was investigated by measuring the solubility of lubricants, and the viscosity reduction and change in oil film thickness of HFC134a/lubricant mixtures in a reciprocating motion. The wear characteristics of an aluminum alloy for the mixtures were also studied. It was found that HFC134a dissolution was exothermic reaction, and the solubility defined by the saturated concentration of HFC134a in lubricants decreased with an increase in the cohesive energy density of lubricants. The reduction in viscosity was affected not only by HFC134a concentration in the lubricants but also by the mean molecular weight of lubricants. The decrease in oil viscosity by dissolved HFC134a made the wear characteristics worse due to reducing the oil film thickness.