边界润滑条件下 ,承载能力主要取决于添加剂的性能 ,含有聚合剂的润滑油在极压状态能在运动副接触表面形成原位聚合膜 ,较大幅度地提高疲劳寿命 ,降低摩擦、磨损。极压添加剂对防止胶合破坏效果较好 ,将上述二种添加剂复配进行协同试验 ,可以得到对疲劳和胶合都有较好作用的润滑油 ,提高润滑油使用性能和扩大应用范围。在含 0 .4%二聚酸 /司本 -80的 46# 精制矿物油中添加 1.5 %重极压齿轮油可使其 PB 增加近 68 ,PD 增加 2 8% ,磨痕直径减少约 3 8% ,疲劳寿命较 46# 精制矿物油提高近 3 3 % ,FZG达到 12级 Under the condition of boundary lubrication, the bearing capacity mainly depends on the performance of the additive. The lubricating oil containing the polymerization agent can form the in situ polymerization film on the contact surface of the moving pair under the extreme pressure condition, greatly improve the fatigue life and reduce the friction and wear. Extreme pressure additives to prevent damage to the glue is better, the above two additives combined with the collaborative test, you can get a good effect on the fatigue and gluing of the lubricating oil, lubricating oil to improve performance and expand the scope of application. The addition of 1.5% EPE gear oil to 46 # refined mineral oil containing 0.4% dimer acid / divinylbenzene-80 can increase the PB by 68%, the PD by 28% and the abrasion scar diameter by about 3 8%, fatigue life than the 46 # refined mineral oil increased nearly 33%, FZG reached 12