Primary Research on Preparation and Properties of Shield Tail Sealing Grease

摘要

In this paper, a type of shield tail sealing grease, composed of basic oil, thickening agent, lubricating grease thickener, lubricating grease, biodegradable fiber and inorganic fillers, was prepared by means of a physical mixing process. In addition, various properties such as density, cone penetration, water-tightness under high pressure, resistance to water spray, evaporation loss and anti-wear were studied. The results show that the shield tail sealing grease prepared under certain composition has relatively excellent properties. For the better samples, the density and cone penetration at the temperature of 25°C are respectively in the range of 1.28±0.02 g/cm~3 and 220-230 mm. No water leakage occurs for over 7 min under high pressure, and it means a good water-tightness under high pressure. Furthermore, the water-resistant stability, stable ability at high temperature and the ability of resisting wear are all well qualified.