Wear-resistant ceramics are special corundum ceramics made of AL2O3 as the main raw material, rare metal oxides as the flux, calcined at a high temperature of 1700 Baidu, and then combined with special rubber and high-strength organic/inorganic binders. The product.
Now alumina wear-resistant ceramics have spread all over the market and are widely used in steel, coal, thermal power, cement, smelting and other industries. So how to choose wear-resistant ceramics?
1. Hardness of wear-resistant ceramics
Generally used in various equipment, people choose wear-resistant ceramic sheets, which are directly attached to the surface of the equipment to protect the equipment from wear. Due to the small size of the ceramic sheets, it can be flexibly applied to various shapes of equipment. Different equipments use ceramics with different hardness, which should be determined according to the working conditions.
2. Wear resistance
In special working conditions, more wear-resistant ceramics are needed, such as ZTA toughened alumina ceramics. ZTA toughened alumina ceramics are based on alumina with a certain amount of zirconia ceramic ingredients added. The wear resistance and toughness are between alumina ceramics and zirconia ceramics. ZTA ceramics have better wear resistance than 95% alumina ceramics. it is good.
3. Working temperature
Secondly, the working temperature of the equipment must be considered, which determines the choice of the installation method of the wear-resistant ceramics to ensure that the wear-resistant ceramics can not fall off under high temperature conditions. In the case of bulk material transportation, the impact strength should be evaluated based on factors such as material properties, particle size, drop, erosion angle, etc., to ensure the selection of appropriate wear-resistant ceramics.
