Impregnated composite bearings  

                          
                         
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                    A porous matrix material impregnated solid lubricant, constitute a composite solid lubricant impregnated bearings, stored in the internal bearing with solid lubricant bearing wear continuously supplied to the friction surface of solid lubricant. Typical carbon-graphite composite bearing is a base material impregnated with a soft metal, Teflon, or inorganic (BaF2) composition. 
Impregnation methods are: 
1 was impregnated vacuum impregnation became molten state. 
2 with the hardening liquid as the carrier, wherein the impregnating composition is impregnated into. 
3, with a volatile liquid as the carrier, wherein the impregnated impregnation was dispersed, and the liquid evaporated. 
4 impregnated impregnated material vaporized after. Impregnate only lubricates, but also increase the strength of the base material.