2011•Fluid MachineryRequires access
Characteristic of Surface Topography of Mechanical Seal During Running-in
Liu Shi-guo
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Abstract
The performance of mechanical seals was influenced significantly by surface roughness.On the MMU-2 friction and wear test machine and the LI-3 type stylus profilometer,three stationary rings with different surface roughness were tested.The law of characteristic roughness change of seal faces with different primary surface roughness was studied during the running-in,and was compared with the law of profile arithmetic average deviation roughness change of surface.The research results show that the roughness of the surface changes from different to consistent.The results provide a basis for the exact designing seal-face roughness of mechanical seals and the reasonable selecting manufacturing method of seal faces by characteristic roughness.