Abstract:
A high temperature screw lubricating paste is described which consists essentially of finely divided tin dioxide and, optionally, a thermally stable inorganic filler homogeneously dispersed in a carrier oil. The inert paste may be used with threaded connections to provide a low break-away torque when the connections are exposed to high temperatures for extended periods.
Abstract:
A solid lubricant combination comprising (a) 25 to 65 parts by weight graphite, (b) 15 to 45 parts by weight zinc sulfide, (c) 5 to 20 parts by weight antimony (III) sulfide, and (d) 5 to 20 parts by weight of an alkali earth metal phosphate, or other inorganic metal phosphate or mixtures of such phosphates which are commonly known as solid lubricants, is described. The solid lubricant combination is especially suitable as an additive to friction linings and results in an improvement in their tribological properties.