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The advantages and application of copper clad aluminum wire

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The advantages and application of copper clad aluminum wire

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The conductivity of aluminum is second only to silver and copper. Although its conductivity is only 2/3 of that of copper, its density is only 1/3 of that of copper. Therefore, the same amount of electricity is delivered. The quality of aluminum wire is only half of that of copper wire. The oxide film on the aluminum surface is not only resistant to corrosion but also has a certain degree of insulation, so aluminum has a wide range of uses in the electrical appliance manufacturing industry, the wire and cable industry, and the radio industry.
Aodepu Cable talks about the advantages of the popular copper-clad aluminum wire.
The copper-clad aluminum wire adopts advanced cladding welding manufacturing technology, and the high-quality copper tape is concentrically coated on the outer surface of the core wire such as aluminum rod or steel wire, and forms a solid atomic metallurgy between the copper layer and the core wire. Combine. Combining two different metal materials into an inseparable whole can be drawn and annealed like a single wire. During the drawing process, copper and aluminum are reduced in proportion, and the volume ratio of the copper layer remains relatively constant. change.
Advantages: Due to the "skin effect" of high-frequency signals, copper-clad aluminum wires have the same conductivity as pure copper wires when transmitting high-frequency signals (greater than 5MHz). Therefore, the copper clad aluminum wire has the characteristics of aluminum, and the density is small. Therefore, purchasing 1 ton of copper clad aluminum wire is equivalent to purchasing 2.6 tons of pure copper wire, which can greatly reduce the cost of raw materials. It can also reduce transportation costs and so on. There is also corrosion resistance of aluminum to enhance its life. Therefore, copper clad aluminum wire is widely used as a conductor in the medical, aviation, and communications industries.