| 摘要 |
<p>The bearing material produced by impregnating in the porous metal or alloy layers, for example, copper or copper-like alloy layers formed by known means, for instance by sintering on the back of a metal plate such as steel, a composition containing 1 to 30% by volume of one or both of a lead-tin alloy, which contains 1 to 25% by volume of lead fluoride and 3 to 30% by weight of tin, and lead wherein the total of the said lead fluoride and lead is 2 to 35% by volume and, as the residual part, polytetrafluoroethylene (PTFE). The capacity of the bearing may be further improved by adding about 0.1 to about 5% by weight of at least one member of the additives consisting of molybdenum disulfide, tungsten disulfide, cadmium oxide, aluminium oxide, calcium fluoride, lithium fluoride, graphite, lead iodide, glass fibre, carbon fibre and phosphates. The bearing is especially suitable for being applied to the shock absorber of vehicles moving under changeable load. </p> |
