The dynamic performance of mechanical seal has significant influence on sealing system stability, small vibration can cause sealing leakage increasing and end face excessive wear.

机械密封动力学性能对密封系统稳定性有很大的影响，微小的振动会导致密封泄漏量增加和端面磨损加剧。

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The sealing shear box is designed especially to meet the purpose that seepage water of high-pressure flows along appointed path of joint face during the test while no leakage will happen.

经特殊设计的渗流剪切盒可以保证节理在进行剪切渗流试验中，一定压力的渗流水会沿指定路径流过节理面，且不发生渗漏。

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