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.

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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.

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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.

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