Impregnated antimony graphite material, graphite products are porous materials, due to the particles have a certain porosity to roast bitumen with volatile substances to escape, making the total porosity up to 20% to 30%. A large amount of gas also exists, which will inevitably affect the performance of graphite products. The bulk density of products will decrease and the mechanical strength will decrease. At the same time, gas and liquid infiltration will not be able to meet the normal working requirements. Therefore, the whiskers must be impregnated to reduce the permeability of the porous graphite material.
The antimony-based graphite material obtained by using antimony as impregnating agent is suitable for mediums such as water, hydrochloric acid and concentrated alkali, and has the advantages of impact resistance, low wear under high speed and high pressure and heavy load, good anti-oxidation performance, meanwhile, Small expansion coefficient, good wear resistance, is the most widely used at home and abroad sealed friction material.
antimony carbon rods
antimony carbon rod for seal