What is the use of copper clad aluminum, please see below:
Heat exchange field
Because the copper / aluminum transition layer is thin and its thermal conductivity is high, when the chip generates heat, it can be exported and the total thermal resistance of the package can be reduced. It can be applied to high-power LED packaging. At present, mcob technology is the mainstream high-power LED packaging technology. Taking advantage of the advantages of copper / aluminum composite material such as high heat collection efficiency and corrosion resistance, it can be used as the heat collection element of solar water heater, which not only improves the thermal efficiency but also improves the economic benefits.
Power field
Copper can be used as the main material of shielded braided wire. After the copper core is coated with aluminum, it can play the role of anti electromagnetic interference and can be used for large signal cables and communication pipelines. Moreover, due to the "skin effect" of the conductor, the surface current density of the material is large and the internal current density is small, which can improve its conduction efficiency and improve its safety and stability. Using copper clad aluminum as composite wire can improve the mechanical properties of the material and reduce the AC transmission resistance. Since copper is traditionally used as the wire rod and copper clad aluminum composite wire rod is used, the quality of wire rod can be reduced.
Refrigeration industry
Because copper has better bearing capacity than aluminum, aluminum is light but has good corrosion resistance. Combined with their many excellent properties, copper can be used as a material for compressors and condensers of air conditioners. It is not only a guarantee for heat transfer efficiency, but also an application for reducing costs and improving service life. Taking copper aluminum composite material as the composite connecting pipe of air conditioner not only has little influence on heating and cooling efficiency, but also can reduce cost, weight and material economically.
Copper clad aluminum, as a material with very broad development and application prospects, is the future development direction in terms of performance and benefits. Different preparation processes, such as solid-solid, solid-liquid and liquid-liquid methods, as well as heat treatment, will have an impact on the interface structure of the composite, and will have an impact on the mechanical and thermal properties of the composite. It is one of the directions of the future research and development of copper aluminum composites to change the properties of composites by controlling the generated compounds. In terms of its own properties, the composite materials with different properties can be widely used in many fields by using the light weight and corrosion resistance of aluminum and the high conductivity and thermal conductivity of copper. For example, the cylinder and gearbox of automobile engine can exert its corrosion resistance and thermal conductivity; The better conductivity of the two can be applied to power equipment and cables to improve the utilization rate of electric energy and improve the safety. It not only ensures the maximum performance, but also reduces the cost. Therefore, it is the development direction of copper aluminum composite in the future to give full play to the performance of composite materials according to the actual demand while considering the cost from the economic perspective.
