Accelerating coverage of 5G base stations, demand for CNC equipment is expected to return to growth
With the issuance of the 5G commercial license of the Ministry of Industry and Information Technology, my country has officially entered the first year of 5G commercial use. According to reports, my country has built 200,000 base stations, and it is expected that more than 7.8 million base stations will be built in the next five years. The average power consumption of 5G equipment is about 3 times that of 4G base stations. Due to its high thermal conductivity, metal occupies a large proportion of the heat dissipation of base station structural parts, such as heat dissipation module assembly AAU heat dissipation shell, radio frequency device miniaturization filter, etc. Demand for structural parts related to heat dissipation modules is strong.
If a single macro base station is equipped with three external active antennas, that is, three heat sinks with a size of about 900x500x150 are required. From the perspective of the 4G layout progress, the demand for 5G heat sinks in 2020-2024 will exceed 20 million. Under the new infrastructure trend, the demand for metal heat sinks is strong. Regarding the large AAU shell in the base station structure, we have analyzed it before, and it is mainly prepared by die-casting aluminum alloy.
The volume of 5G base station is smaller than 4G, the product structure is more precise, and the required production process is more difficult. In addition, the AAU housing is used as a protective housing for the internal radio frequency components of the base station, and the installation cannot avoid the need for high-precision cavities and mounting holes. And so on, and base station structural parts have higher requirements on the flatness, smoothness, shape and position tolerance accuracy and processing efficiency of the product surface.
The machining processes for 5G precision structural parts are mainly milling, drilling, and tapping. However, the size of the holes and grooves of the products is small, and the die-casting products have good density and high hardness. Therefore, the machining equipment needs to be equipped with more Good rigidity reduces the vibration amplitude of the machine tool and ensures the stability of processing.
