Explanation
It has the characteristics of high hardness, toughness, lubricity and compatibility with friction materials. The technological methods for preparing wear resistant coating mainly include: thermal spraying technology, including oxyacetylene flame spraying, plasma spraying, detonmion spraying and high-speed flame spraying. Electric spark strengthening coating technology. Vacuum coating and chemical vapor deposition. ion beam sputtering and ion plating processes. Electroplating and surface anodizing technology. Different kinds of wear resistant coating include oxides, such as Cr2O3, Al2O3, Al2 (VTiC) 2, TiO2, and pump columns, wear rings, and shaft sleeves used in the petrochemical industry to provide corrosion and wear resistant surfaces. Carbide, such as CrC, WC, TiC, and their composites with metals, are mainly used to resist cavitation wear and impact wear, such as fan blade bosses, compressor bushings, and gear box rotating devices for aeroengines. Nitrides, such as TiN, are used in the machinery industry, such as the surface coating of tools, molds and tools, to improve service life, power and product quality. The selection of these coating technologies and materials depends on the requirements of the specific application to provide the required wear resistance resistance and corrosion resistance.
Classification
Inorganic non-metallic materials -> Inorganic coatings and films