Thermal Damage Analysis of Friction Interface of Mechanical Seal Based on Real Morphology
Both thermal and friction state of the sealing interface varies when mechanical seal operates.For purpose of exploring interface thermal and wear characteristics in the mechanical seal,having non-contact 3D morphometer adopted to obtain micro-mophology information of the friction interface and the 3D model of reversely-constructed friction interface was implemented,including having this model based to analyze friction process of the seal ring,and the relevant characteristics of friction interface such as Von Mises stress,heat source,vibration,wear area and wear amount further obtained.The results show that,the wear area of SiC-SiC group is smaller than that of SiC-C group at the same time and the heat source distribution at the frictional interface of SiC-C group becomes more complex than that of SiC-SiC group.The normal ac-celeration of SiC-C group is much larger than that of SiC-SiC group at the beginning of the sealing ring and the wear of SiC-C group is about 3 times that of SiC-SiC group.