What is the wear resistance of refractory bricks?

Refractory brick is a typical refractory material. We need to test all aspects of the product during the production process. Since this product is mostly used for the construction of engineering walls, the requirements for its own wear resistance are relatively High. If you want to improve its wear resistance, you must first remove the factors that affect the product's wear resistance. Then the question is, what does the product's wear resistance have to do with it?

The abrasion resistance of refractory bricks depends on its own composition and structure. When the product is composed of dense polycrystals composed of a single crystal, its abrasion resistance mainly depends on the hardness of the mineral crystals that make up the material. High hardness and high wear resistance of the material. When the mineral crystals are non-isotropic, the crystal grains are fine and the wear resistance of the material is high. When the material is composed of multiple phases, its wear resistance is directly related to the bulk density or porosity of the material, and is also related to the bonding strength between the components.

Therefore, for a certain type of brick at room temperature, its wear resistance is proportional to its compressive strength. If the manufacturer of the product considers the above factors when sintering the refractory bricks, the product produced has better wear resistance. . In addition, the wear resistance of the product is related to the temperature during use. Some products, such as high alumina bricks, are generally considered to be at a certain temperature (such as within the elastic range of 700 to 900 ℃). The higher the temperature, the better the wear resistance. It is considered that when the temperature increases, the wear resistance decreases as the elastic modulus of the brick increases.