<論文>厳しい滑り接触における極圧添加剤のトライボロジー特性 : 極圧状態下での特性

概要

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Mechanical elements that undergo high surface pressure that accompanies abrupt acceleration or deceleration and/or increases in load can easily end in a lubrication state close to dry friction. In that condition, as one of preventive way, the lubricating oil needs addition of some EP(extreme pressure) additives, and in the past, Cl-type, P-type, S-type additive and their blended-types have been used as typical EP additives. In our experiment on steel to steel contact, we tried to investigate the tribological properties of Cl-type, P-type, S-type additive, Cl-P blended-type additive, S-P blended-type additive, ZnDTP, MoS_2, and Calcium-sulphonate using a four ball tester, especially taking notice of the properties of Cl-P and S-P blended additive. As results, it was found that Cl-P blended additive had been superior to other additives, and that P and S-P additives had some effect, whereas Cl and S additives had no effect so much. The oil which includes Cl, however recently, has not been used because of environmental problem; therefore, we have recommended S-P blended-type additive as a substitute of Cl-P blended-type additive.
神戸市立工業高等専門学校の論文
2003-03-01