Two kinds of four ball test methods are discussed. It proved that the rotation speed is the primary factor effected on results.
通过对两种四球试验法的讨论，证明转速是影响试验结果的主要因素。
The tribological properties and the anti-wear of micron coppers inside greases were investigated by four-ball test.
通过四球试验，考察了软金属微米铜粉在润滑脂中的摩擦学行为和抗磨性。
Four-ball wear test indicated, the borate ester and ZDDP additive are antiwear synergistic, which is much useful in developing low-phosphorus engine oils.
四球长磨实验还表明，该硼酸酯添加剂与ZDDP类添加剂具有优秀的抗磨协同作用，这对研制低磷发动机油具有重要的意义。
The tribological properties and the anti-wear of micron copper powder in greases are investigated by four-ball test.
通过四球试验 ，考察了软金属微米铜粉在润滑脂中的摩擦学行为和抗磨性。
The tribological properties and the anti-wear of micron coppers inside greases were investigated by four-ball test.
通过四球试验，考察了微米铜粉在润滑脂中的摩擦学行为和抗磨性。
The tribological properties and the anti-wear of micron copper powder in greases are investigated by four-ball test.
通过四球试验，考察了微米铜粉在润滑脂中的摩擦学行为和抗磨性。
The four-ball machine test showed that the suspension possessed good extreme pressure performance and common antiwear performance; and had no effect on the friction coefficient by the MTM test.
四球试验结果表明，该悬浮液具有较好的极压性能，抗磨性能一般，MTM试验显示该悬浮液对摩擦系数影响不大。
The four-ball machine test showed that the suspension possessed good extreme pressure performance and common antiwear performance; and had no effect on the friction coefficient by the MTM test.
四球试验结果表明，该悬浮液具有较好的极压性能，抗磨性能一般，MTM试验显示该悬浮液对摩擦系数影响不大。
应用推荐