代替フロンHFC134a用潤滑油の摩擦摩耗特性

概要

論文の詳細を見る
The friction and wear characteristics in an alternative refrigerant HFC 134a were investigated using a ball-on-plate type machine. The lubricants used were polyalkylene glycol (PAG) and polyol ester (PEO), which have excellent mutual solubility with HFC 134a. The results obtained are as follows. (1) With PAG, the HFC 134a formed fluoride on the rubbing surfaces, which improved the friction and wear characteristics. In contrast, POE with its high adsorption ability showed poor friction and wear performance above the transition temperature of about 150℃ to prevent the formation of fluoride, although it exhibited excellent friction and wear performance below the transition temperature. (2) TCP of aryll-type phosphate ester improved the friction and wear performance owing to the adsorption film in a low temperature range and the formation of iron phosphate in a high temperature region with PAG. (3) MoDTC of organomolybdenum compound significantly improved the friction and wear performance of the oils used as a result of the formation of MoS_2.
一般社団法人日本機械学会の論文
1997-08-25