Description
1. Ceramic seal faces can resist the general corrosion medium
except hydrofluoric acid and dense alkali. But fragility of Alumina
is very high, so it can be fractured with great changing
temperature.
2. Sic seal faces have the property of excellent
resistant-corrosion, high mechanical strength, high thermal
conductivity, good self-lubrication, and used as seal faces,
bearings and tubes in spacecraft, machinery, metallurgy, printing
and dyeing, foodstuff, pharmaceutical, auto industry and so on.
When the sic faces are combined with graphite faces the friction is
the smallest and they can be made into mechanical seal which are
able to work in highest working requirements.
3. Tungsten carbide is widely used as seal faces with
resistant-wearing, high fractural strength, high thermal
conductivity, and small heat expansion co-efficient. It is the best
material to resist heat and fracture in all hard face
materials.
4. Carbon Graphite has the good property of good
resistant-corrosion, high thermal conductivity and bower friction,
good self-lubrication, the smaller expansion. They can be made into
the seal faces, bearings and so on. It is ideal to choose it as the
frictional mating rings.
