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September 11, 2023
Copper is a non-ferrous metal that is closely related to human beings. It is not only rich in resources in nature but also has excellent electrical conductivity, thermal conductivity, ductility, corrosion resistance, wear resistance and other excellent properties. It is widely used in electricity, electronics, Energy and petrochemicals, machinery and metallurgy, transportation, light industry, emerging industries and other fields are second only to aluminum in the consumption of non-ferrous metal materials in my country. Copper can provide excellent performance in the following industries.
1. Electric power industry
Power transmission such as line cables, transformers, switches, plug components and connectors; motor manufacturing such as stators, rotors, shaft heads and hollow conductors; communication cables and residential electrical lines also require a large amount of copper wires.
2. Electronic industry
Copper foil electric vacuum devices such as high-frequency and ultra-high frequency launch tubes, transition tubes, magnetrons, etc., require high-purity oxygen-free copper and dispersion-strengthened oxygen-free copper. Copper printed circuits require large amounts of copper foil and copper-based soldering materials. In integrated circuits, copper is used as the lead frame instead of aluminum in silicon chips.
3. Energy and petrochemical industry
The main condenser tube sheets and condenser tubes in thermal power plants in the energy industry are made of brass, bronze or cupronickel. Solar heaters are also often manufactured using copper tubing. Copper and many copper alloys in the petrochemical industry are widely used in the manufacture of various containers, piping systems, filters, pumps and valves, various evaporators, heat exchangers and condensers that are exposed to corrosive media.
Because copper is not only resistant to seawater corrosion, but the copper ions dissolved in the water have a bactericidal effect and can prevent marine organisms from being fouled. Therefore, copper and its copper alloys are very important materials in the marine industry. For example, piping systems, pumps and valves used in the seawater desalination process and equipment used on oil and gas production platforms, including bolts, anti-biofouling jackets, pump valves and piping systems used in splash zones and underwater.
5. Mechanical and metallurgical industry
In mechanical engineering, in addition to the large amount of copper used in motors, circuits, hydraulic systems, pneumatic systems and control systems, various transmission parts and fixing parts, such as cylinder liners, connectors, fasteners and twisting parts, etc., all need to be made of copper. Or copper alloy anti-friction and lubrication. Vacuum electric arc furnaces and electroslag furnace water-cooled crucibles in electrometallurgy are all made of copper tubes, and various induction heating induction coils are wound with copper tubes or special-shaped copper tubes.
6. Emerging industries and high-tech fields
Copper is also used in emerging industries and high-tech fields, such as cladding of superconducting alloys, containers and pipelines for ultra-low temperature media, cooling inner villages of rocket engines, and magnet windings of high-energy accelerators.