Product Name:Flexible Graphite Ring For Valves
Properties | Value |
Piling Density/gcm 3 | 0.002-0.005 |
Product Density/gcm 3 | 0.8-1.7 |
Carbon Content % | ≥98 |
Crozzle(ASH) % | ≤0.35 |
Sulphur Content | <1000PPm |
Chlorine Content | <50PPm |
Melting Point 0 C | 3650 |
Hardness | 21~33 |
Tensile Strength(Mpa) | 8~10 |
Compressive Strength(Mpa) | 70~110 |
Compressibility % | ≥ 15 |
Resilient rate % | ≥ 30 |
PH | 0-14 |
Friction Coefficient | 0.149 |
Graphite ring is formed by pressure with flexible graphite sheet cut into fixed size and being intertwined and pressed into a special mould. It keeps all the characteristics of flexible graphite. suitable for valve and pump in a condition of violent changement in temperature and pressure.
To make the graphite product apply and perform excellent wear resistance and self-lubrication property in the circumstance of high temperature and heavy pressure,the graphite/antimony composites were prepared by forcing the melted antimony into pores in the graphite preform with mechanical pressure infiltration method.The microstructure,friction and wear behaviour of graphite preform and graphite/antimony composites were studied,and the change on the friction and wear behaviour after infiltration was estima...
