Electromagnetic shielding
Porous aluminum foam is a new type of structural and functional integrated material composed of metal matrix and gas. Aluminum foam material has broad application potential in metallurgy, construction, machinery and equipment, transportation equipment, electrical and electronic equipment, communication equipment, automotive space and so on because of its small density, heat resistance, energy absorption, impact resistance and electromagnetic shielding performance.
In the field of modern communication, automatic control and computer technology, the use of integrated circuits is becoming more and more widespread, which greatly reduces the volume of electronic devices. A large number of unit circuits are installed in very small computer cavities, because the possibility of interference between them increases, resulting in a new kind of pollution, namely electromagnetic interference. The electromagnetic radiation produced by electromagnetic infection will affect people's health to a certain extent, and interfere with other electronic instruments around them. It may cause their working procedures to take wrong actions. More importantly, electromagnetic radiation will leak electronic data, which greatly reduces the information security of the instrument. Electromagnetic shielding means that electronic equipment does not interfere with other equipment, but also is not affected by other equipment.
