The R & D and investment of bulk materials and copper aluminum composite conductor materials have a certain effect on the application and use cost of relevant materials. "Copper aluminum" material is mainly based on copper and aluminum. The surface of the composite conductor material is copper and its core is aluminum. Copper covers and strengthens the aluminum core and forms a new type of composite conductor material after technical processing. Copper clad aluminum busbar has the following characteristics: first, it has strong conductivity. Compared with high-strength aluminum and other materials, copper clad aluminum busbar has strong conductivity effect, and does not need the intervention of external factors and other means. It has unique advantages in conductivity. Second, it has the characteristics of lightweight. Because the copper aluminum composite conductor material itself is composed of copper and aluminum, its weight is about 50% less than that of pure copper conductive material. For rail transit, new energy vehicles and aerospace fields, weight reduction also means increased load, improved handling performance, increased range and improved fuel economy. Therefore, as a complex conductor material, the benefits of lightweight of copper aluminum are self-evident. Third, the characteristics of low cost. A large number of "aluminum" are applied in copper aluminum composite conductor materials, and the economic cost of aluminum is relatively reduced. Therefore, there is no need to consider the economic cost too much in the application of copper aluminum composite conductor materials.
Copper clad aluminum busbar is mainly divided into two types, mainly including coated type and side aluminum exposed type. Among them, the coated type has become a copper aluminum composite material, which has a relatively wide range of applications. Its main properties are mainly reflected in low economic cost, strong conductivity, corrosion resistance, light weight and so on. In addition, copper aluminum composite conductor materials are mainly divided into round wire, flat wire, flat row and other shapes according to their structural shapes.
The performance of copper clad aluminum busbar is deeply analyzed as follows: first, copper aluminum composite conductor material has high stability in the process of conducting electricity, which is also one of the main properties of copper aluminum composite material. Through repeated experiments and tests, copper aluminum composite conductor material can have strong "stability", which is also an important substantive embodiment of the wide application of this material in related fields. Second, it has lightweight characteristics. Since the copper aluminum composite conductor material itself is composed of copper and aluminum, compared with pure copper, the density of pure aluminum is about 1 / 3 of that of pure copper, and the comprehensive weight of copper clad aluminum busbar is about 50% less than that of pure copper. For the fields of new rail transit, ship transportation, new energy vehicles and aerospace, the weight reduction of conductive materials of vehicles also means that the load is increased and the handling performance is improved The range is increased and the fuel economy is improved. Therefore, copper aluminum, as a comprehensive lightweight conductor material, has obvious beneficial effects on its performance.
Through the sorting of relevant data, it is found that the R & D and application prospect of copper clad aluminum busbar is relatively optimistic, which has attracted the attention of many enterprises and experts at home and abroad, and has been vigorously applied in major international fields, mainly including switchgear, distribution cabinet and generator set in power system; Traction equipment, substation, transformer, etc. in railway system. In addition, copper aluminum composite row is also widely used in aviation and ferry fields. At the same time, based on the influence of copper aluminum composite conductor material and "copper aluminum bar" in China, its production and application fields are also gradually expanded, as follows: first, the practical application in shielded braided wire. Shielded braided wire sleeve is mainly used for large signal cables and communication pipelines. The wire sleeve is mainly used to prevent electromagnetic field interference and electric field interference. Through the analysis and research of copper aluminum composite conductor material, it is found that using "copper" as the main material of braided wire can play a certain anti-corrosion effect. Through the practical application of copper aluminum composite conductor material, it is found that copper covered surface and aluminum core can play a certain role in preventing electromagnetic and electric field interference. Second, practical application in automobile harness. Unlike other wire harnesses, automobile wire harnesses need more scientific and accurate system layout, but traditional automobile wire harnesses are prone to jumper and other problems. The application of copper aluminum composite conductor material can improve crimping performance, reduce anti sway and enhance the flexibility of CCA wire. Third, practical application in power cable. Copper aluminum composite conductor material has a certain application effect in power cable, mainly due to the safety and stability of the actual conduction of power cable. The practical application of copper aluminum composite conductor material can improve its conduction efficiency and the safety and stability of power cable.
