The tribological properties of the mechanical seal lubricated with the refrigerating machine oil with oiliness and anti-wear additives were studied by using a thrust-washer test rig. Frictiontests were carried out under bath lubrication for the basc oil,oil A (basc oil+ oleic acid and tricresyl phosphate at 5 mmol/kg) and oil
B (base oil +oleic acid and tricresyl phosphate at 10 mmol/kg,5mmol/kg, respectively). From the tests,the
following results were obtained. (1) The coefficient of friction μ decreased in following order at sliding velocity
3.93 m/s :base oil> oil A> oil B. The value ofμ with oil B was 0.08 ~ 0.10,and was about 1/2 times as small as that with base oil. (2) The amount of friction loss decreased in following order: base oil >oilA >oil B. Therefore,the additives of oleic acid and tricresyl phosphate showed significant improvements in tribological
properties of the reftigerating machine oil.
出版者
日本設計工学会
その他のタイトル
Tribological Properties of Mechanical Seal in Thrust-Washer Test(Case of Refrigerating Machine Oil with Oiliness and Anti-Wear Additives)