The principle of electrostatic shielding is to prevent the formation of electrostatic field or make it escape through the conductive properties of shielding materials to achieve the purpose of anti-static. It is used in electronic components, computer communication equipment, aerospace, medical equipment, explosion-proof electrical appliances and other fields.
Electrostatic shielding is a kind of anti-static technology, electrostatic shielding materials can absorb the charge in the electrostatic field or lead the charge into the ground, so as to attenuate or eliminate the impact of electrostatic field. Common electrostatic shielding materials are metal and carbon fiber and other conductive materials. Electrostatic shielding is mainly used in electronic components, computers, communication equipment, aerospace, medical equipment, explosion-proof appliances and other fields.
1, electronic components: in manufacturing, the need to use electrostatic protection materials to packaging and storage, in order to prevent electrostatic damage to components. For example, in the integrated circuit manufacturing process, wafers need to be electrostatically shielded to avoid electrostatic damage to wafers and transistors.
2, computer: in the field of computers and communication equipment plays an important role, through the use of electrostatic shielding materials to protect the computer internal components from electrostatic interference, can reduce the hardware failure and data damage caused by electrostatic discharge. Installation and use in accordance with anti-static specifications is necessary to protect the normal operation of the equipment and extend the life of the equipment.
3, aerospace: the need to use electrostatic shielding materials to protect space electronic equipment from the effects of electrostatic discharge. Due to changes in air pressure and the surface of the aircraft and air friction and other reasons, electrostatic charging is easy to produce on the surface of the aircraft, in the detection and maintenance also need to use electrostatic shielding tools, and with some anti-static products to prevent electrostatic interference.
4, medical equipment: the need for rapid elimination of static electricity technology and static shielding materials to ensure the performance and safety of equipment. Medical equipment in the application of electrostatic shielding technology, can reduce the operator and the patient at the same time on the spot by the risk of electric shock, improve the safety of the operation, in the process of medical operations is indispensable.
5, explosion-proof appliances: the need to use electrostatic shielding material to prevent electrostatic explosions. Explosion-proof appliances is an electrical device used to guard against the risk of explosion. In the explosion hazardous industrial areas and environments, the use of explosion-proof electrical appliances and electrostatic shielding technology can effectively reduce the risk and probability of explosion, to protect personnel and equipment safety and normal operation.
Materials
In addition to common conductive materials such as metal and carbon fiber, there are polymer electrostatic shielding materials, carbon nanotubes electrostatic shielding materials, conductive polymer fiber electrostatic shielding materials. These new materials have the advantages of good conductivity, light weight, high strength, corrosion resistance, etc., can better meet the anti-static needs of different areas.