Guangzhou precision shielding cover, 15 years of ingenuity, focusing on precision stamping + more than 20 mold R u0026 D design engineers

Hello everyone, I am a precision shield manufacturer hardware responsible for the production of Guangzhou precision shield covers. Today I will bring you some knowledge about shielding covers. Let’s take a look! At present, the materials of precision shielding covers on the market generally use stainless steel and cupronickel. Stainless steel has good shielding effect, high strength and moderate price, while cupronickel shielding effect is slightly worse, softer, and easy to deform. The price is generally about 30% more expensive than stainless steel. Although stainless steel is not as good as cupronickel in terms of tin effect, it can solve the problem of tinning well after galvanizing. The principle of precision shielding cover: Use shielding body to surround the interference sources of components, circuits, assemblies, cables or the entire system to prevent the interference electromagnetic field from spreading out; use shielding body to surround the receiving circuit, equipment or system to prevent them Affected by external electromagnetic fields. The material of the precision shield is usually 0.2mm thick stainless steel and nickel silver. 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 metal 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. Choose, choose success