Abstract
In order to improve the comprehensive properties of casting aluminum, and to fulfill the requirements of forming thin wall fins for communication products, mechanical stirring was employed to prepare the semi-solid aluminum alloy AlSi8. communication products were produced by the semi-solid die casting process. The microstructure and mechanical and thermal properties were studied. The test results show that the microstructure of semi-solid die-casting samples changes from dendrite to globular microstructure, and the average tensile strength, elongation and thermal conductivity are 220MPa, 7% and 170 W/(m*K), respectively, which is significantly higher than that of the common die-casting samples. It was proved that the semi-solid die casting technology can be used in actual production and improve the products quality.
Highlights
The communication technology is updated and the data transmission speed is growing rapidly
In 5G(five generations) network practical application, mobile phone with phased array antenna will transmit signals to base station and microcellular base station, and the base station and microcellular base station will communicated with phased array antenna to realize signal connection
Compared with the metallographic pictures of semi-solid die casting in the relevant literature, the semi-solid die casting effect was not so good, and this process needs to be improved greatly
Summary
The communication technology is updated and the data transmission speed is growing rapidly. Base station elements, such as filter housings, are required to have better heat dissipation performance. In response to the requirements of high thermal performance, communication enterprises have improved their design, using raw materials with higher thermal conductivity, optimized structural design of filter housing, etc., using thinner fins to increase the cooling area, and requiring suppliers to adopt improved technology to further improve the cooling performance
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