Al203 Alumina Ceramic Plunger; alumina ceramic plunger; ceramic plunger; industrial ceramic plunger
1.Features:
High-strength and fracture toughness
High-hardness and density
Ultra-smooth surface, low-friction coefficient
Modulus of elasticity and thermal expansion
Coefficient similar to steel
2.Ceramic metal plunger
Compared with metal plunger, alumina ceramic plunger solved the problem of bad corrosion and wear resistance and short working life. Compared with existent ceramic plunger, our anti-pull-off alumina ceramic plunger solved the problem of easier pull off of metal from ceramic. The Plungers are connected with metal handles mechanically, and the viscose glue is filled between them to prevent the screw from getting loose.
3.Properties of alumina ceramic plunger
1)High Corrosion and wear resistance
2)Strong impact resistance
3)dilevers 10 times longer working life than metal plunger
4)They give a longer life to the sealed packing material
4.The application ceramic plunger
1, Ceramic shaft for aquatic animals equipment filter pump
2, Alumina Ceramic plunger for high pressure cleaner.
3,Wearlessness,resistant acid-base and high intensity ceramic assembly apply to petroleum ,chemical and chemical industry.
4,Wearlesness, corrosion resistance parts apply to precision machine.
ItemTest ConditionUnit& Symbol95% Al2O399% Al2O399.7% Al2O3The main chemical ingredient Al2O3Al2O3Al2O3Bulk Density g/cm33.63.893.96Maximum Use Temperature 1450° C1600° C1650° CWater absorption %000ROHS Hardness ≥ 85≥ 89≥ 89Flexural strength20° CMPa (psi x 10 3 )358 (52)550550Compressive Strength20° CMPa (psi x 10 3 )2068 (300)2600(377)2600(377)Fracture ToughnessK(I c)Mpa m 1/24 - 55.66Coefficient of thermal expansion25-1000° C1X 10 -6 /° C7.67.98.2Coefficient of thermal conductivity20° CW/m ° K163030.4Thermal Shock ResistanceTc° C250200200Dielectricity constant1MHz. 25° C 99.79.7Dielectric strength ac-kV/mm (ac V/mil)8.3 (210)8.7 (220)8.7 (220)Volume Resistivity100° Cohm-cm> 10 13> 10 14> 10 14