磨损

Both ends of the wear cap maintenance: Gear pump with cast iron end caps, wear phenomenon occurs after a slight revision in the plate mill level, more serious wear and tear on the grinding surface grinding machine should be revised in the flat.

两端盖的磨损维修：齿轮泵的端盖用铸铁制造，出现磨损现象后，轻微的可在平板上研磨修平，磨损比较严重时应在平面磨床上磨削修平。

Not only has a wear plane presented in the side of core wire due to fretting wear. But also there are regular micro striations with approximately 3m interval in the plane.

这种微动磨损不仅在钢丝的侧面产生磨损面，而且在磨损面上形成了排列规则、间距为3m左右的微观条纹。

Analysis is made on block effect to cutters of PDC bit with 3 factors: different top shape,cutter-distributing and wearing degree.By the interaction(radial range and altitude difference of each cutter) of three adjacent cutters,the cutter block is further analyzed with these factors,but wearing degree is simplified to be considered as the cutters vertical to the assembling plane.

中文摘要：对PDC钻头冠部形状及不同的布齿密度和切削齿在不同的磨损状态下对PDC钻头切削齿受力的影响进行了分析；用相邻的3个切削齿之间的关系（不同的切削齿与切削齿之间的径向距离和切削齿之间的高度差）来分析PDC钻头冠部形状和切削齿布齿密度对切削齿受力的影响，以及将切削齿的磨损状态简化成与切削齿在钻头上装配方向垂直的平面来分析切削齿磨损状态对切削齿受力的影响。

The wear on the bottom of mill was heavier than on the side. The main worn form on the bottom of milling cutter was ploughing groove and diamond pull-out. The wear form on the side was flattening worn and diamond crushing.

刀具底面的磨损比侧面严重，刀具底面的磨损形式主要是犁沟，金刚石主要以脱落为主；侧面的磨损形式主要是磨平，金刚石颗粒以破碎为主。

Wear resistance and wear mechanism of carburized layer of meta-bainitic steel in pin-on-disk abrasive wear and impact abrasive wear were investigated.

研究了准贝氏体钢销盘磨料磨损和冲击磨料磨损的耐磨性和磨损机制，确定了回火温度对耐磨性的影响，探讨了残余奥氏体的机械稳定性及其对耐磨性的作用。

The hardness of Al2O3 coatings cladded by laser is about 2 4792 691 HV0.2 and the wear resistance is 23 times that of plasma sprayed coatings.

熔覆后的Al2O3涂层硬度达2 4792 691 HV0.2，耐磨性能为原始涂层23倍，其磨损机制是疲劳磨损和磨料磨损。

The results show that with the increase of drill wears, the box dimension and the information dimension as well as the correlation dimension of drilling force signals appear obviously to have the downtrends. Accordingly, this characteristic can be effectively used to realize the monitoring of drill wears.Aiming at the characteristics of the highest overlap of the feature modes in each drill wear condition, the hidden Markov model is put forward to resolve the drill wear monitoring.

针对各钻头磨损状态下特征模式高度重叠的特点，提出采用隐马尔可夫模型HMM解决钻头磨损监测的思想，对1肠IM在钻头磨损监测中的原理及实现方法进行了系统的研究，完成了基于前后向算法和Baurn一Welch算法进行模型训练和识别的具体实施步骤，建立了基于S服网络的矢量量化器，解决了钻削力特征矢量的融合与编码问题。

Effect of cutting force and feed rate on the tool life as well as wear mechanism was alsodiscussed.

研究表明高速切削时刀具的磨损形式以氧化磨损和扩散磨损为主。

With the increase of temperature, the friction coefficient of the composition materials increased and the wear rate of the composition materials decreased.PPTA pulps in the friction materials overcome the shortcoming of asbestos that has high wear rate at high temperature.

结果表明，3种芳纶浆粕增强的摩擦材料都具有优良的摩擦磨损性能，特别是随着温度升高，摩擦系数有较大提高的同时，磨损率明显下降，克服了石棉增强的摩擦材料在较高温度下磨损率较大的缺点。

The most powerful tool of tribology study is experiment and all kinds of friction testing system is designed and manufactured for friction test.

但在这些摩擦试验系统上都无法实现摩擦速度实时改变的试验，为了验证摩擦速度变化对摩擦磨损情况的影响，同时也为了研究周期性波动摩擦速度变化下的摩擦材料性能和特点，从探讨非匀速摩擦磨损过程的构思出发，提出构建一种非匀速摩擦磨损试验装置。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。