In the production process of large materials such as cement and ore, a large number of abrasion resistant materials need to be applied. From traditional cast wear-resistant materials to non-casting materials, there are more and more types of wear-resistant materials. It is very important to choose suitable abrasive materials for different industries and mines.understanding the advantages of each wear-resistant material, whicn can effectively protect industrial equipment and prolong its service life.
NO.1-High-manganese steel materials: The toughness is surplus, and the hardness is too low.
NO.2-High chromium cast iron: high hardness, insufficient toughness
NO.3-Alloy steel, divided into low-carbon low-alloy steel, medium-carbon low-alloy steel
The above are cast abrasion resistant materials, with the development and application of new technology and new equipment. The application of cast wear-resistant materials is limited, and non-cast wear-resistant materials such as wear-resistant steel plates, surface heat treatment, wear-resistant ceramic sheets, and wear-resistant ceramic coatings have been more widely used.
1: Wear-resistant steel plate has high hardness, can be welded, high impact toughness, and good bending performance, but the disadvantage is that it cannot be applied to occasions where the working environment is greater than 200 degrees Celsius. Because the grain grows up, the hardness decreases greatly.
2: Wear resistant ceramic tile liner, using Al2O3 as the main raw material, rare metal oxides as the solvent, and calcining at 1700 degrees Celsius to become 92 or 95 Al2O3 corundum ceramics. High hardness, excellent wear resistance, light weight, small equipment compound, smooth surface, low friction coefficient, low water absorption, and acid and alkali corrosion resistance. The melting point is as high as 2000 degrees Celsius, but the adhesive is prone to ageing at high temperatures. Therefore, in high-temperature working environments, the ceramic sheets can be made into dovetail groove type mutual compression or welding type to strengthen the bonding strength with the equipment.
3: Ceramic coating: As the temperature rises, the wear resistance of all materials will be affected, but the ceramic coating can reach a maximum of 1200 degrees Celsius, which can withstand the erosion of particles at any erosion angle. But below 300 degrees Celsius, the hardness and wear resistance of the ceramic sheet is better than that of the ceramic coating.
How to choose suitable wear-resistant materials? Chemshun Ceramics company remind you that, before choosing, comprehensively analyze the operation of working equipment, including temperature, speed, and contact materials. If you want to consult abrasion resistant ceramics, consult Chemshun Ceramic, manufacturer professionally design, product and installation of wear-resistant ceramics.
Keyword: ceramic balls