Carbon Graphite Seals

Seal materials require high strength and a relatively high modulus of elasticity to withstand deformation at the interface. Carbon-graphite seal materials provide the strength and rigidity which are especially important in high pressure, zero leakage mechanical end-face seals. High thermal conductivity is essential in removing heat from the interface.
Seal wear is a result of adhesive wear, chemical wear, erosive wear and sometimes radioactive wear. Carbon-graphite is inert to most chemical reagents so it survives where other materials fail. However, chemical wear is evidenced in certain strong oxidising environments or where the additives are attacked by specific oxidising reagents.

Applications of Carbon Graphite Seals

Carbon-graphite and graphites are excellent materials for aircraft turbine engine mainshaft seals. The mainshaft in a turbine engine rotates at very high speeds and operates in an environment of changing high temperature conditions. Mainshaft bearing compartment seals are used to protect rotor support bearings from hot gases flowing through the engine and to prevent the loss of lubricant in the bearing compartments.

CHINATUNGSTEN ONLINE has been specialized in manufacturing tungsten products, especially tungsten carbide products for more than 20 years. If you have any inquires concerning the products in this website, please do not hesitate to e-mail us by : sales@chinatungsten.com