Henan motherboard shielding cover, take you to understand the knowledge of shielding cover +30000+ sets of customized stamping die production experience

Hello everyone, I am a hardware shield manufacturer responsible for the production of Henan motherboard shielding covers. Today I will bring you some knowledge about shielding covers. Let’s take a look! The principle of the main board shielding cover: Use a shield to surround the interference source of components, circuits, assemblies, cables or the entire system to prevent the interference electromagnetic field from spreading; Use a shield to surround the receiving circuit, equipment or system to prevent them Affected by external electromagnetic fields. The material of the shielding cover is usually 0.2mm thick stainless steel and nickel silver as the material. Among them, nickel silver is a kind of metal shielding material that is easy to be tinned. The design of the suction cup should be considered when using SMT stickers. The flatness of the mobile phone motherboard shielding cover produced by our company is strictly controlled within the tolerance range of 0.07mm to ensure its easy tinning performance and excellent shielding effect. The main board shield is also called magnetic shield. It is generally made of magnetically permeable materials. The best one is permalloy, but it is expensive. Generally, magnetically conductive silicon steel strips or iron are used. Then in toroidal transformers What is the main function of the shielding cover? The toroidal transformer using the shielding cover has small magnetic leakage and low interference. For power amplifier transformers, electromagnetic interference can be largely eliminated. The sound quality is quite pure and noise-free. It is mainly used for magnetic shielding, effectively reducing the interference of magnetic field on circuits and electronic components. Hardware, committed to being the best and most professional precision stamping processing factory in the world