aluminium copper bimetal

 News     |      2020-08-03 16:18
Metal copper is not abundant in nature, and its price is relatively high, so people are actively looking for alternative materials in the electrical industry. Aluminum has abundant natural reserves, low price, low density, and good conductivity. It is a conductive material with excellent conductivity. Therefore, in the 1960s, someone proposed the idea of ​​replacing copper with aluminum. However, when aluminum wire is used as a conductor for transmitting electrical energy, due to the low strength of metal aluminum itself, it is prone to deformation and corrosion under stress. And a strong oxide film is easy to form on the surface, resulting in a larger contact resistance, making it difficult for aluminum to become a good conductive material used in the electrical industry, and the difficult connection of metal aluminum also limits its further promotion.  

aluminium copper bimetal

The emergence of aluminum copper bimetal has improved these shortcomings, making it widely used in communications, electronics, electrical appliances, automobiles, household appliances and other fields. In order to reduce weight and save costs, many important components in power transmission and electrical equipment are often made of copper-aluminum composite materials.   The aluminum copper bimetal produced by Henan Chalco has studied its composite interface performance and electrical conductivity. The results showed that the copper-aluminum composite board has good electrical conductivity, and its electrical conductivity can reach 92% IACS. It is at the interface of copper-aluminum bonding. It can be observed that the yard diffusion effect is significant, and the welding result is excellent.