Analysis and Experimental Study on Friction and Wear Characteristics of Super High-Speed Mechanical Seal

Abstract

Mechanical seal is the core component of the servo system. It’s sealing, reliability and wear resistance depend not only on the structural design of the seal, but also on the matching of friction pair materials on the end face of the seal. On the basis of the feasibility study of ion implantation on the surface of the seal ring, a comprehensive test scheme is proposed to verify the friction and wear characteristics of the seal pair. By selecting typical graphite and rotating metal ring pairs to test and test under dry grinding conditions, changing the linear velocity and the end face specific pressure, the friction and wear characteristics of paired friction pairs are compared and analyzed by using friction and wear testing machine, the influence of load and rotational speed on the pair friction coefficient of sealing pair is systematically studied, and the sealing tribological characteristics are revealed. This paper introduces mechanical-seal work reliability of temperature stress and system test performace based seal pair, the application of these plans will provide a reasonable and efficient technical way for the verification of life and reliability test of ultra-high speed mechanical seal.