组合式密封装置是一种新型低摩擦力的密封装置，它既保持了“O”型密封圈的优点，又克服了“O”型密封圈的不足。
But built-up sealing device, a newly developed one has the advantage of the "o" type and gets rid of its disadvantage.
计算结果表明，机械密封端面压力分布呈凸抛物线状，增加密封端面锥度可降低摩擦系数。
The calculation results show that the pressure distribution shape is a convex parabola and the increase of the radial taper of the seal face can decrease the friction coefficient.
分析表明，载荷、密封间隙、橡胶密封筒高度对应力最大值有影响，而摩擦系数影响很小。
The result shows that load, seal gap and seal height have influence on the maximum stress while friction coefficient has little influence on it.
可降低摩擦系数，提高密封的可靠性和使用寿命。
By using it, the friction coefficient can be reduced and the sealing reliability and service life are improved as well.
电站锅炉给水调节阀的阀杆密封采用柔性石墨填料，既降低了摩擦力，又为调节阀的运行节约了能源。
The stem seal of a feed water control valve uses expanded graphite packing in order to produce friction and to economize on energy for the control valve working.
采用符合填料，密封可靠，摩擦力小。
具有结构先进，密封性好，抗拉强度高，耐腐蚀，高弹性，自润滑性能好，摩擦系数低等特点。
This product possess advanced structure, good sealing performance, high tensile strength, corrosion-resisting, good elasticity, good self-lubricating character, small friction coefficient, etc.
现有的资料及文献对O形密封圈产生摩擦阻力的理论计算方法介绍甚少。
The theoretical calculation method for the friction resistance produced by O-sealing washer is seldom expounded in existing referance materials and document.
本文介绍了一种用于高压小尺寸往复密封中，具有寿命长、密封性好、摩擦系数小的组合密封，即V型橡胶圈和V型PTFE圈组合密封。
This paper introduces a reciprocating seal with high pressure and small size. The seal is composed of rubber V-ring and PTFE V-ring, and has long lifetime, good sealness and low friction coefficient.
蝶阀上的这种旋转作用力取决于三个因素：(1)阀瓣与阀座密封的摩擦力；(2)轴承摩擦力；(3)动力矩。
This turning force in a butterfly valve is determined by three factors. (1) friction of the disc to seat for sealing (2) Bearing friction (3) Dynamic torque.
这种材料在水介质中具有较低的摩擦系数和较好的耐磨与密封性能，其使用寿命优于进口的密封材料。
This material possesses a lower friction coefficient, better wear-resistance and seal ability with water medium. Its service life is superior to that of the imported seal material.
介绍了磁流体往复轴密封的原理，从摩擦学设计角度分析了其设计和使用中要注意的问题。
The principle of magnetic-fluid reciprocating shaft seal is introduced, some problems of its design and application are analyzed from the point of view of tribological design.
切削刀具的切削力及密封圈回转摩擦力的初步分析计算。
A primary analysis for cutting force of the tools and the frictional force in rotating seal ring are also given.
分析了动环密封圈轴向摩擦力与密封开启失效的必然联系。
The inevitable relation between axial friction force of movable sealing ring and sealing ope...
本发明提供一种密封装置，其中用于密封装置的弹性部件的粘附性受到抑制，并且在密封装置中滑动的部件的摩擦系数得以降低。
A sealing device in which an elastic member used for the device has reduced adhesion and in which the friction coefficient against a member sliding against the device is reduced.
分析结果表明，临界密封压力只与橡胶圈的压缩量和密封面摩擦系数有关，与橡胶圈截面半径无关。
The present study shows that there is a critical seal pressure which is only related to the compression ratio and the friction coefficient, but does not depend on the radius of the elastomer ring.
本实用新型的有益效果是结构简单，摩擦系数小，密封可靠，延长了密封圈的使用寿命。
The sealing structure has the advantages of simple structure, low friction factor and reliable sealing, which can prolong the service life of sealing rings.
对V形密封在整个工作寿命中，轴向挤压应力、轴向压力分布、摩擦力等特性变化进行实验研究。
The variation laws of wearing character on V - packing are studied in the whole working life. The wearing character include the friction force, axial extrusion stress and axial pressure distribution.
对V形密封在整个工作寿命中，轴向挤压应力、轴向压力分布、摩擦力等特性变化进行实验研究。
The variation laws of wearing character on V - packing are studied in the whole working life. The wearing character include the friction force, axial extrusion stress and axial pressure distribution.
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