| 1. | Max sliding speed
最高滑动速度vmax油 |
| 2. | The predominant wear mechanisms of cu - nanosized tib2 in - situ composites are plastic flow and oxidational wear at higher sliding speed
在较高滑动速度下，塑性流变和氧化磨损为其主要磨损机制。 |
| 3. | The hump of houma north railway station is a mid - automation of hump yard . the auto - controlled system equipped with hook cars way and the semi - automated controlled system of hook cars ' sliding speed ensure the capability of hump disintegration
侯马北站驼峰是中能力驼峰，装置有钩车溜放进路自动控制系统和钩车溜放速度半自动控制系统，为提高驼峰的解体能力提供了保障。 |
| 4. | The analytical model indicates that the rubbing temperature of tire surface is affected by some parameters , such as ambient temperature , sliding speed and distance , normal load and thermal - mechanical properties of the counterface materials , as well as geometric shape of a tire footprint
分析了大气温度、滑动距离、滑动速度、轮胎承载以及胎面和路面材料的物理性能对接地胎面温度的影响。 |
| 5. | The weight loss of the composites is larger under the synergism of the parameters than the simply superimpose of weight loss under the single parameter . micro - cutting is the mainly abrasion mechanism under low sliding speed and light - load
利用磨损图综合分析了复合材料的摩擦磨损性能与各因素间的关系： ( 1 )各因素协同作用时复合材料的磨损失重要大于各因素单独作用时磨损失重量的简单叠加。 |
| 6. | Under a constant applied load and sliding speed , the wear rate of cu - nanosized tib2 in - situ composites was increased with increasing the electric current . the predominant electric wear mechanisms of the cu - nanosized tib2 in - situ composites are abrasive wear and arc erosion
在一定载荷和滑动速度下，随电流的增加， cu -纳米tib2原位复合材料的磨损率增加， cu -纳米tib2原位复合材料的电接触滑动磨损机制主要为磨粒磨损和电侵蚀磨损。 |
| 7. | Load and sliding speed on the wear mass lose were evaluated . at the same time , in order to estimate the role of different surface treatments on nano - inorganic filler and ptfe composites , ptfe composites filled with surface untreated nano - alios were prepared as antithesis at the same condition
同时，为了评价表面处理方法在无机纳米粒子塑料复合材料中所起的作用，制备了一份具有相同含量但未经表面处理纳米al _ 2o _ 3填充ptfe ，在相同工况下进行对比试验研究。 |
| 8. | Owing to the interfacial cracking which occurs under higher applied load conditions , the composite with high content of tib _ 2 phase exhibited a transition from mild wear to severe wear over the applied load range from 10 n to 80 n . under moderate applied load , increasing the sliding speed caused a decrease in wear rate and friction coefficient of the in - situ composites because the formation of a protective oxide film occurred on the sliding surface and the hardness of the subsurface layer was maintained due to reinforcement of tib2 nanoparticles in the cu matrix
随着载荷的增加， cu -纳米tib2原位复合材料的磨损率和摩擦系数增加；由于在较高载荷下发生表面开裂，高含量的tib2相增强原位复合材料发生了由轻度磨损向严重磨损形式的转化。在中等载荷下由于表面保护性氧化膜的形成和基体中纳米tib2相的存在使复合材料具有良好的抗软化能力， cu -纳米tib2原位复合材料的磨损率和摩擦系数随着滑动速度的增加而下降。 |
| 9. | Adhesive wear is the main abrasion mechanism of composite in high sliding speed and heavy - load . the adhesive wear is the main abrasion mechanism when the size of filling is minor or the content of filling is low . with the increase of the size or the content of filling , the mainly abrasion mechanism transit from adhesive wear to grinding abrasion
( 2 )在低速低载时，复合材料的磨损以犁削磨损为主，在高速高载时，复合材料的磨损以粘着磨损为主；在填料粒径较小或填料含量低时复合材料的磨损以粘着磨损为主，随颗粒含量的增大或填料粒径的增大，复合材料的磨损变为以磨料磨损为主。 |
