Shielding cover, understand what a shielding cover is + 15 years of shielding cover manufacturer and 3 million punching next day production capacity

What is a shield? Xiaoshuo analyzes with you with many years of experience in shielding research and design. First of all, shielding is the isolation of metal between two spatial areas to control the induction and radiation of electric fields, magnetic fields and electromagnetic waves from one area to another. Specifically, shielding is used to surround the interference source of components, circuits, assemblies, cables or the entire system to prevent the interference electromagnetic field from spreading outward. Use shielding to surround the receiving circuit, equipment or system to prevent them from being affected by the external electromagnetic field. Because the shielding body absorbs energy (eddy current loss), reflected energy (reflection of electromagnetic waves on the interface of the shielding body) and canceling energy (electrical interference) and internal electromagnetic waves from external interference electromagnetic waves such as wires, cables, components, circuits or systems. Magnetic induction produces a reverse electromagnetic field on the shielding layer to cancel part of the interference electromagnetic wave), so the shield has the function of reducing interference. When the frequency of interfering electromagnetic waves is low, materials with high magnetic permeability should be used, so that the lines of magnetic force are limited to the inside of the shield and prevent spreading to the shielded space. In some occasions, if a good shielding effect is required for both high-frequency and low-frequency electromagnetic fields, different metal materials are often used to form a multilayer shield. When the frequency of the interfering electromagnetic field is high, the eddy current generated in the metal material with low resistivity is used to form the cancellation effect of the external electromagnetic wave, so as to achieve the shielding effect. Hardware, 15 years of focus on shield manufacturers, 20,000+ sets of customized stamping die production experience, monthly processing capacity of 100+ sets of molds, hundreds of precision processing production equipment, daily production capacity of 3 million punches, silk-like stamping accuracy up to 0.01mm , The raw materials are imported and the original national standard factory, and 16 quality inspections are strictly controlled.