Application prospect of cold spraying technology

       Cold spraying is mainly used for spraying materials with certain plasticity, such as pure metals, metal alloys, plastics and composite materials. Especially due to the low heating temperature of the particles, there is basically no oxidation, especially suitable for some temperature-sensitive materials (such as nanomaterials, amorphous materials, etc.), easy-to-oxidize materials (such as aluminum, copper, titanium, etc.) and easy-to-phase change materials ( Such as carbon-based composite materials, etc.) coating preparation. In addition, cold spraying can also prepare functional coatings, such as: corrosion-resistant, high-temperature oxidation-resistant coatings; wear-resistant and solid-lubricated anti-friction coatings; insulating coatings or insulators on conductors, or high-conductivity coatings on low-conductivity metals layer; surface modification gradient coating; multi-layer functional coating; organic polymer coating and thermoplastic resin coating.



With the joint efforts of scholars at home and abroad, cold spraying technology has emerged in general machinery manufacturing industry, aerospace industry, shipbuilding industry, agricultural machinery, automobile industry, electrical engineering and instrument manufacturing industry and other fields. Components such as turbine disks, pistons, cylinder valves, rings, bearings, pump parts, bushings, shafts and seals have potential applications, as well as for rapid prototyping, direct production of parts.