泵用机械密封织构端面干摩擦磨损仿真及试验研究.

In order to reduce the dry frictional wear of the end face of the mechanical seal used in the start and stop stage and under severe vibration conditions, the dry frictional wear simulation and experimental study of the textured face of the mechanical seal used in the pump were carried out. Firstly, the transient finite element model of the end face of dynamic and static ring seal with surface texture was established by ANSYS software. Based on Archard wear theory, the wear law of static ring ( graphite ring) under different texture spacing angle, edge length and rotation angle was analyzed, and the wear volume distribution of graphite ring was obtained. Then, the wear test of seal ring with different texture parameters was carried out by friction and wear testing machine under dry friction condition, and the surface morphology and wear mass of seal ring were obtained. Finally, The effects of different texture parameters on the wear mass of graphite ring and the mechanism of texture wear reduction were discussed. The experimental results show that the texture grooves are capable of hosting abrasive particles and generating a graphite transfer film to minimize wear; to minimize wear on the face of sealing ring, it is necessary to have a suitable texture area that can accommodate abrasive particles without causing excessive surface roughness; on average, with every 5 ° increase in texture spacing angle and 0. 1 mm decrease in edge length, the wear mass of graphite ring respectively decreases by approximately 7. 83% and 7. 35% . The wear mass of the graphite ring increases by 4. 25% on average when the rotation angle increases by 15 °. These findings can offer enhanced theoretical support towards surface texture design for pump mechanical seals, thereby bolstering their wear resistance. [ABSTRACT FROM AUTHOR]