| 1. | Analysing the wear mechanism of abrasive . adhesive wear . 2 对磨粒磨损和粘着磨损的磨损机制进行分析。 |
| 2. | Insufficient resistance to adhesive wear will induce failure by galling or seizure in the event these components make contact 如果没有足够的耐磨能力,一旦零件之间发生接触,则可能因咬死或卡住而导致失效。 |
| 3. | Detaching the wear region and background , caculating the threshold value is 151 , 147 , 118 taking overlap method and maximum dispersion method of high - load small particle abrasive wears low - load big particle abrasive wear and adhesive wear , then processing edge detection and skeleton map with classical sobel and gauss - laplace and kirsch arithmetic operators of template matching method , making the shape skeleton produced by different wear mechanism embodied cleared . and analysing the trait of shape skeleton 然后应用边缘检测的经典边缘检测算子sobel算子、 gauss - laplace算子和模板匹配法中的kirsch方法对图像进行边缘检测以及轮廓提取,使这三种磨损形式的不同磨损机制所产生的形状轮廓得到清晰地体现,并结合磨损机制分析形状轮廓的特点。 |
| 4. | Filling cu or cuo powder has changed the wear mechanism of rubbing pairs of uhmwpe - steel . when pure uhmwpe pairs up with steel , adhesive wear takes place . but after the cu or cuo power are putted in , adhesive wear and abrasive wear take place at the same time , and the percentage of abrasive wear increases accordingly with the increase of filler 填料的加入改变了uhmwpe与钢配副时的磨损机理,纯uhmwpe与钢配副时的磨损机理是粘着磨损,加入填料后变为粘着磨损与磨料磨损共存的状态,而且随着填料含量的增加,磨料磨损所占的比重上升。 |
| 5. | Results of the experiments showed that the wear mechanisms of the sintered steel included abrasive wear , adhesive wear and fatigue wear , and it was the abrasive wear most important . it was the sintered steel mixed by ni , mo that was the best on the wear resistance , because of the great lot of bainite ; the sintered steel quenched and low temperature tempered mixed by mo , w that was the best on the wear resistance , because of the rigidity of the steel was the highest 实验结果表明:本文中几种烧结钢的磨损机制均是由磨粒磨损、粘着磨损、和疲劳磨损共同作用的,且以磨粒磨损为主;在烧结态下,复合添加合金元素镍、钼的烧结钢的耐磨性能最好,这是因为生成了大量的硬质相贝氏体;而淬火、低温回火态下,则复合添加钼、钨的烧结钢的耐磨性能最好,这是因为热处理态下添加钼、钨的烧结钢的硬度最高。 |
| 6. | The results show that the reinforcement phase plays a wear - resistant role . under the dry friction , the wear of the composites is caused by the co - effects of various mechanisms such as adhesive wear , micro - plowing and micro - cutting of abrasives on the matrix and separation of the composite phases 研究结果表明,由于增强相具有抵抗磨损的作用,使得复合材料具有很高的耐磨性;在干摩擦条件下复合材料的磨损主要是粘着、显微切削以及复合相脱落、碎裂等多种机制综合作用的结果。 |
| 7. | ( 2 ) it is found that distilled water as lubricant can markedly reduce the accumulation of friction heat and temperature rise on the frictional surfaces of polymer . so the heat fatigue and adhesive wear decrease . moreover , a lubricating film forms on the interface between the counterpart and polymer when distilled water acts as polar lubricant ( 2 )润滑剂水的存在,可大幅度降低聚合物磨损表面的摩擦热积累及温升,从而减少了基体的热疲劳磨损和粘着磨损,同时,水作为一种极性润滑剂,在摩擦界面上能形成一层润滑膜,对摩擦表面起了一定的隔离作用。 |
| 8. | It has been discovered that ( 1 ) in the region between 100 - 350 the friction coefficient is lowering along with the swing of temperature ; ( 2 ) the friction coefficient is the highest at the temperature of 500 , and adhesive wear occurred ; ( 3 ) the global graphite grain layer appeared at the surface of wear scar at 450n and 300 , and played an extremely good effect of lubrication , thus makes a fairly lower wear at the temperature of 300 发现: ( 1 )在100 ~ 350区间,随温度的升高,摩擦因数在降低; ( 2 )在500时,摩擦因数最高,且发生了粘着磨损; ( 3 )在450n , 300时,磨痕表面出现了球状的石墨颗拉层,这起到了极好的润滑作用,使得300时,磨损较低。 |
| 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。 |
| 10. | The proposed wear mechanisms of the materials without oil lubrication were the followings : the wear mechanisms of the ferroalloy are adhesive wear , abrasive wear , and some oxidation wear . the wear mechanisms of the composites are abrasive wear and the brittle peeling off . the abrasive wear and the brittle peeling off incr eased with the increase of sic particles content in the composites 在无润滑条件下,通过对磨痕形貌的观察,认为铁基合金的磨损机理主要是粘着磨损和磨粒磨损,同时伴随有一定程度的氧化磨损;加入sic后主要是磨粒磨损和脆性剥落,且sic越多材料的脆性剥落越严重。 |