摩擦

Keywords Cu-based friction materials;nano-SiO2;friction and wear;powder metallurgy

铜基摩擦材料；纳米SiO2；摩擦磨损；粉末冶金

Substituting for powder metallurgy friction materials,paper-base friction materials are used in transmissions and brakes to improve their gear shifting and braking smoothness,reduce noise and increase products service life.

采用纸基摩擦材料替代粉末冶金摩擦材料，应用于变速器以及制动器中，改善变速器与制动器的换挡及制动平稳性、降低噪声，提高产品寿命。

Coupling means (7) can take the form of glue, friction material with a particle size of 0.1 1.0 mm, a film provided with friction material, a powder coating or a plasma coating.

利用胶粘剂、大约0.1-1.0mm粒度的摩擦材料、设有摩擦材料的薄膜、粉末涂层或者等离子涂层作为增附结构(7)。

The paper is mainly focused on the friction process between piston ring andcylinder when piston moving back and forth with cylinder.

本文主要研究内燃机活塞环-缸套摩擦副作往复运动时的摩擦过程特性。

The friction between pistonring and cylinder is the primary factor of engines power loss. So, it is much meaningful to cut down the friction between piston ring and cylinder.

活塞环与缸套间的摩擦功率损失是整个内燃机功率损失的重要部分，降低摩擦功耗，提高内燃机效率有重要意义。

In addition, there is a lot less heat build up in the cylinders from ring friction due to the finer honing pattern used in modern engines.

另外，由于现代发动机油缸使用精磨技术，由摩擦环产生的摩擦热要小得多。

By studying the design of other experiment machine, I took drill machine as the base and power, and then devised the measure equipment and experiment equipment that is can be used to research the friction and abrasion between piston ring and cylinder.

然后深入探讨了活塞环-缸套之间的摩擦磨损的特点，结合有关试验机的设计方案，利用钻铣床作为实验台和动力源，自行设计了适用于研究活塞环-缸套之间摩擦磨损的实验和测量装置，丰富了实验手段，利用它可以设计进行多种工况、载荷、转速条件下的实验方案。

In addition, virtually everything possible has been done to the engine to reduce friction, including an offset crankshaft/connecting rod design, plateau honing of the cylinders for a smoother surface and a second low friction piston ring.

此外，几乎所有可能已经做了引擎，以减少摩擦，包括偏移曲轴/连杆的设计，一个光滑的表面和第二低摩擦高原活塞环珩磨的气瓶。

The effect of the friction between rolls and ring can be ignored and the effect of the spread velocity of rolling on the deformation of ring is illustrated.

通过模拟分析比较，揭示出了环件轧制过程中的金属流动规律：轧制时，环件外侧的变形最大，厚向中心部位变形最小，内侧的变形程度介于中间；环件内外环面的压应力分布和变化规律：在垂直于环件轴线的对称面上，压应力分布近似对称状态，而且在对称面上的应力最大，往端面方向开始减小；指出了环件轧制中轧辊与环件摩擦对环件成形的影响：对于环件的宽展变形，摩擦的影响很小，可以忽略；分析了环件进给速度对环件成形的影响并阐述了环件厚向中心部位凹陷产生的原因，提出防止凹陷的措施：在轧制时，尽量使用快的进给速度有利于防止端面凹陷的产生；研究了导向辊位置对环件成形以及轧辊受力的影响：导向辊的位置对环件的宽展变形影响很小，但对轧辊的受力影响较大，当导向辊的中心位置位于毛坯初始中心位置之上时，驱动辊和芯辊的受力相对较小，这是导向辊导向时优先考虑的位置。

Paper, paper and of friction, Business card printing and membership card making, paper and rubber roller, the friction between the imprint drum Taiwan is static electricity.

造纸时，纸与不抬光机的摩擦，制卡和会员卡制作时，纸与橡皮滚筒、不抬印滚筒之间的摩擦……都是爆发静电的来因。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。