Service Life of Magnetic Liquid Vacuum Tribounits

To evaluate the service life of a tribounit with magnetic liquid in a vacuum it is necessary to know the time dependence of dispersed phase growing concentration on the carrier liquid evaporation. According to the molecular-kinetic theory of matter, we determined the evaporation rate and pressure intensity of saturated vapor of single fluid in a vacuum depending on temperature. The solution covers evaporation rate of colloidal systems such as magnetic liquid or magnetic lubricating oil. The obtained equation describes the time dependence of a dispersed phase growing concentration on the carrier liquid evaporation, which allows evaluating magnetic liquid tribounits’ service life.