copper coated aluminium busbar

Jul 26, 2023

The copper coated aluminium busbar is a high-tech energy-saving conductor material, which also has the conductivity of copper and the low density of aluminum. As early as the 1960s, some European and American countries began to research and apply copper-clad aluminum materials, and were the first to formulate conductor standards. Copper-clad aluminum is known as the third-generation new conductor after copper and aluminum in Europe and the United States. There are relevant industry standards in various countries. It has entered the practical stage and is widely used in automation, metallurgy, high and low voltage electrical appliances, construction and metallurgical industries, etc. industry. Copper coated aluminium busbar is a kind of bimetal with aluminum as the matrix and copper coated to form a permanent interatomic metallurgical bond between them. The surface is bright, round and defect-free. It is a new type of conductor material that combines the high-quality and stable electrical conductivity of copper with the low-cost energy of aluminum with low contact resistance. It can fully replace pure copper bars. Copper accounts for 40% of the weight and aluminum accounts for 60%. Under the same specifications, it is 2 to 2.5 times longer than pure copper bars. The current carrying capacity is 85% of that of pure copper bars. The cross-sectional area is selected. An increase of about 10% can fully achieve the same current carrying capacity as pure copper, and its mechanical and electrical properties can meet customer requirements.

Advantages of copper coated aluminium busbar:
1. Good conductivity: the electrical performance of copper-clad aluminum row with 15% or 20% copper-to-aluminum volume ratio, compared with copper row, 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 (volume) of the same weight is 2 to 2.5 times that of pure copper bars.
3. Good mechanical properties: good tensile strength, flexibility and elongation.
4. Firm copper-aluminum bond: The two different metal materials achieve permanent atomic intercrystalline bond at various ambient temperatures, and the copper layer (tin plating, zinc 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, shearing, and bending products without cracking and separation. In order to improve the corrosion resistance, tin plating and zinc plating can be performed on the surface of the copper layer.
6. The best choice: save copper, greatly reduce production costs, green and environmentally friendly, without any pollution.

Application The copper coated aluminium busbar can be specially used to replace copper and aluminum busbars. widely used in. Automation, metallurgy, high and low voltage electrical appliances, construction industry and metallurgical industry. This product adopts foreign advanced bimetal composite material technology, with stable quality and reliable performance. It is a high-tech energy-saving product.