Mobile phone shield, material selection and design + 16 quality inspection factory [hardware]

Mobile phone shielding cover is a relatively common product in mobile phone structural parts, which mainly plays a role in shielding electromagnetic waves and stabilizing mobile phone signals. Xiaoshuo sorted out some knowledge about the shielding cover, and share it with you: Mobile phone shielding cover bracket: Generally, the bracket can use: Cu-C7521 (R-1/2H or R-OH) (nickel white copper, nickel silver, Nickel Silver) ), stainless steel, tinned steel strip (tinplate), etc. It is recommended to use nickel silver; reason: nickel silver is better in terms of welding, heat dissipation and steam. The cover of the mobile phone shielding cover is generally made of stainless steel SUS304 (R-1/2H. The shielding cover can be made of 0.1 or 0.15mm thick material, and try to use 0.15mm; for the bending type shielding bracket, use 0.20mm thick material as far as possible, and use less 0.15mm Thick material; The tensile shielding bracket must be made of 0.2mm thick material. The horizontal gap between the mobile phone shielding cover bracket and the shielding cover is 0.05mm in the X and Y directions, and 0.03-0.05mm in the Z direction should be reserved on the top of the shielding bracket. In order to prevent the shield frame hole from being lowered, the shielding cover cannot be buckled in place. The shielding cover can be made of 0.1-0.2 thick material, and 0.15mm should be used as much as possible; the curved shielding bracket should be 0.20mm thick material, less than 0.15mm thick material; stretching the shielding bracket 0.2mm thick material must be used; Ordinary bending bracket: at least avoid the gap between the cover and the PCB to exceed 0.3, to prevent the solder paste from climbing the top of the wall shielding cover, affecting buckling; tension bracket: the gap between the cover and the bracket in the Z direction exceeds 0.1; cover The material is stainless steel SUS304, and the frame material is copper-nickel alloy C7521. The diameter of the assembly through hole on the shielding bracket is generally 0.6, the diameter of the convex inner wall of the shielding cover is 0.70, and the height of the convex inner wall is 0.15 mm. The design of the protective cover bracket/cover must be in There should be at least one buckle on one side. For every increase of 5mm, one buckle should be added, that is, at least one buckle within 5mm, at least two buckles within 10mm, and at least three buckles within 15mm. The buckle must be a through hole. If the device The height ratio is high, and the shield support cannot have a long rib position, you can lift the long rib position locally, and then tear the rib position after the repair, and the distance between the tearing hand position and the inner edge of the shield frame Should be greater than 1 mm. Hardware, 15 years of focus on mobile phone shielding, 20,000+ sets of mold customization processing and production experience, 3 million strokes of daily production capacity and 16 quality inspections strictly for quality control. Can quickly solve your urgent problems and solve them The accuracy of your products will solve the quality requirements of your stamping parts. Choose, choose and rest assured!