Purpose. To improve the performance properties of mechanical engineering products through a comprehensive combination of processes for strengthening parts by micro-arc oxidation, assembling products and creating new damper designs.
Specifications. Microarc oxidation of aluminum and its alloys is carried out in an electrolyte according to the following modes: current density – up to 200 A/dm2, voltage – up to 1000 V, electrolyte temperature not higher than 100 °C. The thickness of the oxide coating is up to 600 microns, microhardness is up to 24 GPa. The coating composition includes a high-temperature phase -Al2O3. The coating provides protection against corrosion and wear.
Application area. Oil and gas industry. Machine-building, aircraft-building enterprises, defense complex enterprises and organizations
Advantages. The technology is environmentally friendly and safe, since it involves the use of aqueous silicate-alkaline electrolytes. The costs of mechanical processing and the cost of engineering products are reduced. The load-bearing capacity of oxide coatings increases.
Technical and economic effect. Provides high corrosion resistance and wear resistance of products, especially in flood environments. The service life of equipment, machines and mechanisms increases, which ensures savings from the introduction of reinforced products.
Description. Strengthening parts by micro-arc oxidation, new designs of threaded connections, rational assembly of products, improved designs of dampers. Manufacturing a workpiece with preliminary reinforcement of an aluminum base/applying an aluminum layer to a steel workpiece with the introduction of aluminum oxide particles into its composition with increasing concentration. Microarc oxidation in electrolyte. Flushing. Drying. Mechanical processing of the part (if necessary). Quality control. Reinforcement of the aluminum base/aluminum layer before microarc oxidation increases the load-bearing capacity of the oxide coating and equalizes the microhardness across the thickness of the coating.