Alumina Ceramic Ring
Aluminum oxide ceramics, silicon nitride ceramics, zirconia ceramics
Alumina wear-resistant ceramics are made of 92 alumina powder or 95 alumina powder and sintering aids, granulated by a granulator, and then dry-pressed into blocks under a dry press and supporting molds, and fired in a high-temperature kiln at 1700 degrees Made of white corundum wear-resistant ceramics. It is mainly used in industrial equipment to protect the equipment from wear, so as to achieve a longer service life of the equipment and reduce the loss caused by downtime maintenance.
Features of alumina wear-resistant ceramics:
1. High hardness
Its Rockwell hardness is above HRA90 and the Mohs hardness reaches 9 grades, the hardness is second only to diamond, far exceeding the wear resistance of wear-resistant alloy steel and ordinary wear-resistant steel.
2. Light weight
Its density is more than 3.6g/cm3, which is only half of that of steel, which can greatly reduce the load on equipment. At the same time, due to the low friction coefficient, it is conducive to system stability and energy saving.
3. Excellent wear resistance
Its wear resistance is equivalent to 300 times that of carbon steel, and 100 times that of bimetallic surfacing wear-resistant steel plate. After years of field application tests by our company, under the same working conditions, the service life of the equipment can be extended by more than ten times, and its wear is very low. , After the slag mill uses wear-resistant ceramics, its annual wear rate is lower than 10%.
4. Strong bonding and good heat resistance
The wear-resistant ceramics are pasted on the inner wall of the equipment with heat-resistant superglue. It can run for a long time at 285°C without aging, and can be used for long-term operation at a high temperature of 720°C by welding and fixing. Its heat resistance and bonding strength are far ahead of international indicators. At the same time, wear-resistant ceramics with stud welding are almost impossible. fall off.
5. Wide application range
Suitable for thermal power generation, iron and steel smelting, machinery manufacturing, coal mining, petrochemical, cement building materials, port logistics and other enterprises' material transportation, pulverization system, smoke and wind six channels, dust removal and dust removal system and other mechanical equipment or systems with large wear and tear. Different types of products can be selected according to different needs.