Ceramic sealing ring is a A sealing component made of part or all of ceramic material.Its main material are aluminum oxide,zirconia,Silicon Nitride，silicon carbide ,Tungsten Carbide and other Composite Materials.
Kinds of ceramic sealing ring:
Zirconia(ZrO2):with good chemical corrosion and high temperature resistance,widely used in fields of mechanical,chemical,oil,food,Pharmaceuticals，automative etc,especially under adverse conditions on which metal and other material can not work.
Aluminum oxide(Al2O3):own high strength,hardness and excellent wear-resistance and corrosion resistance,applying to all kinds of industies,especially in environments that need to withstand high temperatures and abrasion
Silicon carbide(SiC):possesing the properties of perfect strength,hardness and chemical resistance,silcion carbide ceramic sealing ring is used widely,high cost performance,Long service life，makes it better than normal metal sealing ring.
Silicon Nitride(Si3N4):has good high temperature resistance and corrosion resistance,suitable to work in high temperature,high corrosion condition.
Tungsten Carbide(WC) and its composite material:high hardness of WC and advantages of its composite material makes it wear resistance and corrosion resistance,used in many industries.
The above ceramic sealing rings,because of their special perfermance,are widely used in semiconductor equipment,machanical seal，papermaking machinery,textile machinery,electrical/electrical parts,insulation,water-tap etc