1. Product description
The main difficulties in preparing aluminum copper clad laminate sheet are as follows.
1）Copper and aluminum are easy to be oxidized, especially aluminum, and the oxide film is difficult to remove;
2）Copper and aluminum form metal to metal at low temperature
The intermetallic compound is hard and brittle, which greatly damages the composite strength between copper and aluminum and affects the Conductivity and thermal conductivity.
2. Product Features
In addition, it is necessary to systematically study the damage laws and characterization methods of layered metal composites, develop the interface structure optimization design theory, fracture criteria and interface engineering modulation principle of layered composites, and design special layered structures. At the same time, it is necessary to use mechanical evaluation means and indicators such as constitutive relation and failure criterion of layered materials to further guide the design and exploration of layered composite materials, so as to improve the performance of material structures and improve their reliability.
3. Application
The inner and outer conductors of RF cables and leaky cables conduct high-frequency weak current signals, and signal attenuation is the main performance control index. Shielded cable foil used for control cable and computer cable to prevent communication between signals.
The mutual interference ensures the normal communication, and the shielding performance of the signal is taken as the main performance index. At high frequencies
Due to the skin effect, only the copper on the surface plays a role in signal transmission
Yes, the attenuation of aluminum copper clad laminate sheet is close to that of pure copper, while the performance of aluminum cannot be compared with that of copper.
The requirements cannot be met when the performance requirements are high. Copper aluminum composite has a broad promotion prospect in the future communication industry, but the applied research and development of some auxiliary reliability and processing performance has just begun, and there is still a lot of research work to be done.
4. FAQ
At present, driven by many factors such as functional requirements, energy conservation and environmental protection, the development of composite materials is in the ascendant, and its preparation methods are also constantly innovating. This innovation is not only reflected in the application of new scientific and technological means, but also in the integration and improvement of traditional methods in material composition. As an important traditional method, rolling cladding has mature production lines and equipment that can be directly applied to production. The bonding interface of rolled products is also relatively solid and reliable. Many products, such as stainless steel/carbon steel clad plate, have been industrialized, and there is a large social demand. Compared with other composite methods, it has obvious cost advantages. At present, there has been considerable research on rolling cladding, but there are still many unclear places. By combining with advanced computer simulation technology, model simulation and theoretical numerical analysis of rolling mechanism are carried out to obtain a deeper and comprehensive understanding, which is of great significance for promoting the improvement of rolling technology and further application in the field of metal material composite.
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