The difference between alumina ceramic 92 porcelain and 95 porcelain？
Alumina ceramics are special corundum ceramics made of AL2O3 as the main raw material, rare metal oxides as flux, and fired at a high temperature of 1,700 degrees. It has high wear resistance, high strength, high hardness, high temperature resistance and corrosion resistance. Features, solve all kinds of industrial wear problems.
Alumina wear-resistant ceramics include 92%, 95%, and 99% series. The content of alumina is different, and the technical parameters are different.
Among them, the most purchased by most customers are 92 porcelain and 95 porcelain. Let's take a look at the comparison of technical parameters between 92% and 95%.
Technical parameters of 92 alumina ceramics: alumina content ≥ 92%, bulk density ≥ 3.62g/cm3, bending strength ≥ 280Mpa, Rockwell hardness ≥ 82HRA, Vickers hardness ≥ 1000HV10, fracture toughness: 3.0, maximum service temperature: 1250 ℃.
Technical parameters of 95 alumina ceramics: alumina content ≥ 95%, bulk density ≥ 3.7g/cm3, flexural strength ≥ 300Mpa, Rockwell hardness ≥ 85HRA, Vickers hardness ≥ 1200HV10, fracture toughness: 3.2, maximum service temperature: 1350 ℃.
Through the comparison of the parameters of the two, it can be seen that the density, strength and hardness of 95 porcelain are higher than that of 92 porcelain, so the wear resistance of 95 porcelain is also better than that of 92 porcelain, and the quality is better. It is suitable for wear-resistant requirements. on working equipment. Although the use of 92 and 95 is not much different, the use of 92 porcelain in general working conditions is enough to resist wear, and the price is cheaper than 95. According to the different working conditions of the equipment, it is very necessary to choose alumina ceramics reasonably. For bulk material conveying equipment that has a high drop or a large impact force, it is necessary to choose ceramics with higher strength, zirconium-aluminum composite toughened ceramics, or wear-resistant ceramic composite plates.
