端面密封接触状态的转化

The transform from contacting to noncontacting state of face seal

接触式端面密封由于其密封性能较佳，因而得到广泛应用；但因其工作寿命短，使其使用不尽人意。本文通过对端面密封的动力分析，探讨了端面密封的端面接触式状态与非接触式状态的相互转化，论证了这种转化是完全可以实现的，这对延长端面密封系统的工作寿命无疑是有益的。

Because of its excellent seal property, contacting mechanical face seal was widely used. But itsserrice lifeis shorter, which limits its use in some cases. Through the dynamic analysis of the face seal, the transfrom from contacting to noncontacting state is discussed, which prroved this transform to be completly possible. These are lfbenefit to prolong its serrice life.