四球法 meaning in English
four ball method
four-ball method
Examples
- Petroleum and related products - determination of the extreme pressure and anti - wear properties of fluids - four ball method european conditions
石油和相关产品.液体的极端压力和耐磨性能的测定.四球法 - Petroleum and related products - determination of the extreme - pressure and anti - wear properties of fluids - four ball method european conditions
石油及其产品的试验方法. bs 2000 - 239 :流体的极限压力和耐磨特性测定.四球法 - The article developed the self - compensation repairing lubrication additives which endowed with new function to old lubrication oils according to the theory of self - compensation repairing theory by aided financially from china nature science fund ( ratification number : 59975039 ) . the first , the article studied the tribological effect of several kinds of lubrication additives by single - phase , two - phase and three - phase mixture by four - ball machine . the article studied the effect of the mixture ratio and the additive concentration on tribological effect - antifriction , wear - resisting and bearing capacity
论文首先以四球法，对新合成的几种润滑添加剂的单相和双相、三相复配后的摩擦学特性进行了较系统地研究，研究了复配比例和添加量等对其摩擦学性能?减摩、耐磨、承载性能的影响，在此基础上优选了es12和esm122两种润滑添加剂，对其进行了较系统的磨损自补偿修复效应及其摩擦学效应研究和对四种成品润滑油的适应性研究，并对摩擦表面的自补偿膜进行了红外光谱分析。