Introduction of the advantages of copper clad aluminum

Copper-clad aluminum is a metal composite material that can exert the properties of two metal materials on a single wire. Copper-clad aluminum wire combines the excellent electrical conductivity of copper with the advantages of light aluminum to form a lightweight conductive material. . Copper-clad aluminum manufacturers: There is a view that the resistivity of aluminum conductors is greater than that of copper conductors, so using aluminum metal materials as conductors for power cables, the energy loss during transmission should be greater than copper materials. According to the country The recommended standard is that at 20 ° C, the DC resistance value of a copper conductor cross section is equivalent to the DC resistance value of aluminum conductors corresponding to the two specifications, that is, from the consideration of energy loss during transmission, a copper conductor power cable It can be replaced by aluminum conductor cables corresponding to two specifications, and their current carrying capacity is equivalent.

1. Good electrical conductivity: The copper-clad aluminum discharge performance of 15% or 20% copper-aluminum volume ratio, compared with the copper bar, its AC current carrying capacity is 85% of pure copper.

2. Light weight: The density of copper-clad aluminum bars is only 37% -40% of pure copper bars, and the length of the same weight is 2-2.5 times that of pure copper bars.

3. Good mechanical properties: It has good tensile strength, bendability and elongation.

4. Strong copper-aluminum bonding: Permanent atomic-crystal bonding between two different metal materials at various ambient temperatures, and the copper layer is evenly distributed without any physical defects.

5, good ductility and reliability: after a special heat treatment process, it has a certain degree of plasticity, which is conducive to punching, cutting, bending processing products do not crack, do not separate. In order to improve the corrosion resistance, tin plating and galvanizing can be performed on the surface of the copper layer.

6, the best selectivity: save copper, greatly reduce the cost of supporting production, environmental protection, without any pollution.