性摩擦

In comparison with the experimental results of the two types of friction materials, we find that the intensity of heat fading is greatly related to the component of brake lining.

0引言摩擦系数的稳定性直接影响制动器工作的稳定性和驾车的安全性，其中，热稳定性是其中一项重要的指标，它是指制动衬片在制动过程中所表现出的摩擦因数随温度而变化的特性，主要反映在制动器的热衰退性上。

It is probably useful to modify engineering plastics with the addition of polytetrafluoroethylene, which is a crystal polymer with lower friction coefficient, to improve composites friction and wear performance.

添加自身摩擦系数较低的结晶性高分子材料聚四氟乙烯是一种比较有效的改善工程塑料摩擦磨损性能的方法。

The stability of sliding contact of metal impregnation carbonmaterial is worse than that of copper-base powder metallurgy material.

4浸金属碳材料的减摩性不如铜基粉末冶金材料的，其摩擦系数比铜基粉末冶金材料的摩擦系数大，其值分别大了14.4％—150％；同时，浸金属碳材料的摩擦稳定性也不如铜基粉末冶金材料的。

This paper introduces the specialties of giant telescope mount control system,analyses the non-linear disturbance which reduces the performance of control system,compares two robust control theory and points out that H-infinity control theory is more suitable for telescope mount control system.

基于H∞控制理论，将非线性摩擦转矩处理为标称系统的输出端乘法摄动，把克服非线性摩擦转矩的影响转化为提高系统对模型摄动的鲁棒性；同时也考虑了系统对风扰力矩的抑制能力。

The universal research in microscopic tribological mechanism of contact, adhesion, friction, molecular-level solid-liquid interaction, tribochemistry, triboelectricity etc, in the interaction among goetmaterials or between goematerials and artificial materials during geomotion, were reviewed and analyzed.

2综述和分析了地质运动过程中普遍存在的微观摩擦机制如接触、粘着、分子级流体-固体相互作用、摩擦化学、摩擦电性等的研究概况，认为地质摩擦学的研究应具有宏观和微观两个层次，对地质运动的微观机制的研究将促进对地质材料的地球物理、化学和力学性质的研究，并有助于对各种尺度上的地质运动过程的理解

It analyses the yarn damage with the method of straight drawing and bend drawing.Abrasion damage and abrasion life of the sewing yarns are investigated by using a self-made tribometer.

采用对缝合线进行直拉与弯曲拉伸的方法分析纱线损伤|采用实验室自制的摩擦仪模拟缝合线与缝针摩擦，进行耐磨性测试。

Alkyl siloxane is good lubrication, water-resistance, anti-fouling, anti-tacking, printable, and strong affinity to organic materials, especially for its low wear-out, low friction coefficient and high susceptibility of additives that used as lubrication. Besides, it has the excellent properties in printing, impression and paint that used as mold-release agent. Therefore, alkyl siloxane is applied widely and researched thoroughly.

长链烷基硅油具有优良的润滑性、憎水性、防污性、防粘性、可涂印性及对有机材料的亲和性，尤其作为润滑油使用时，具有低磨损、低摩擦系数及对添加剂感受性好等优点；作为脱模剂使用时，不仅使用效果优异，而且不妨碍产品表面随后进行的印刷、压印及涂漆，因此得到广泛得开发和应用。

The weldability and mechanical property of the friction welded joints of ductile cast iron and low carbon steel were studied.

通过试验研究了铁素体球墨铸铁与低碳钢异种材料的摩擦焊接头的组织性能，探讨了其摩擦焊接性。

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。

Copper-base sprayed welding alloy is produced by adding B, Si, Ni, Mn, Al, Fe and P into the copper base, which has sound heat conduction or electricity conduction performance, being antirust, with low frictional coefficient and sound adhesive friction wear resistance, easy for cutting and being smooth.

铜基喷焊合金，是在铜基体中加入B、Si、Ni、Mn、Al、Fe、P等合金元素制成的，具有良好的导热，导电性和耐蚀性，摩擦系数低，耐粘着摩擦磨损性能优良，易切削，光洁度高。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。