Aluminum alloy shielding cover, what are the contents of the shielding cover + more than 20 mold R u0026 D design engineers

Hello everyone, I am a hardware shield manufacturer responsible for the production of aluminum alloy shields. Today, Xiaoshuo of Hardware brings you some knowledge about shields. Let’s take a look! Shielding cover design check points: 1. The side clearance between the shielding bracket and the shielding cover in the X and Y directions is 0.05mm; the top of the Z direction also needs to reserve a gap of 0.03~0.05mm to avoid the shielding frame after the hole is moved down. The cover is not in place. 2. The shielding cover can be made of 0.1 or 0.15mm thick material, try to choose 0.15mm; the bending shielding bracket should use 0.20mm thick material as far as possible, and the 0.15mm thick material should be used less; the tensile shielding bracket must be 0.2mm thick 3. Ordinary bending bracket: avoid the gap between the cover and PCB at least 0.3 or more to prevent the solder paste from climbing the top of the wall and affecting the buckle; Stretching bracket: the gap between the cover and the bracket in the Z direction is more than 0.1; 4. Shielding cover ( The material of the cover) is stainless steel SUS304 (R-1/2H); the material of the shielding bracket (frame) is nickel silver C7521 (R-1/2H or R-OH); 5. If the device height is higher than the price, the shielding bracket cannot be long ribs. The long ribs can be locally raised, and the raised ribs can be torn off after patching; the distance between the tearing position and the inner edge of the shielding frame must be more than 1mm, so that the individual fragile ribs cannot be cut by hand; 6 .If the shielding bracket is to increase the tearing position, the design of the shielding bracket tearing position must ensure a clearance of more than 0.4 with the components. If it is less than 0.4, it must be made into a zigzag or raised at an acute angle (10 degrees, within 0.6mm in height). It is made into a vertical shape; the tearing position is designed on the long side, and there is no reverse pulling position; 7. The width of the bracket's frangible rib is designed to be 1.5mm, the middle is made with a Φ0.7mm through hole, and the distance between the center of the hole and the edge is 0.2mm (V -cut as far as possible, and it is not easy to produce burrs and deformation after tearing off the top cover), it needs to do V-cut on both sides, the cutting depth of V-cut groove is 0.07mm on one side (the remaining material thickness is 0.06mm); 8. The assembly on the shielding bracket The diameter of the hole is generally Φ0.6; the diameter of the inner side wall of the convex point on the shielding cover is Φ0.70, and the height of the protruding inner side wall is 0.15mm; 9. The shielding bracket/cover must be designed with a buckle point, and at least one buckle must be designed on one side For each additional 5mm, add a buckle point, that is, at least 1 point for 5mm, 2 points for 10mm, 3 points for 15mm, and the buckle point must be a through hole; the specific structure depends on the specific structure of the shield; 10. For the edge There are parts with relatively short slope steps, which cannot be used as buckle points. Other structural forms need to be considered to ensure the sealing performance. If the structure cannot be increased, the top surface can be compressed by adding conductive foam, etc., and at the same time, let the stamping die at this position Make a slight downward deformation to ensure that the fit does not warp; if the RF problem still cannot be solved, it is recommended to make a single-layer shielding cover. The company of Miss Zheng in Bazhou is a mobile phone communication product. There is a mobile phone shielding product that needs to be exported abroad. The specific plan has been implemented. The customer needs to send 3K goods within a week. The company was stumped. The mold required for this shielding cover has not been opened yet, and several factories have been contacted but no suitable choice has been found. In the end, I found our hardware after several twists and turns, and after some discussion, I directly got the drawings and made the mold... The mold of this shielding cover was made in only 5 days. On the 6th day, the finished 3K goods were delivered to Ms. Zheng’s company on time. Hardware, 15 years of focusing on aluminum alloy shielding cover, has a 5000 square meter production workshop, has more than 20 mold Ru0026D and design engineers, seven precision stamping core technology patents, 20000+ sets of stamping mold customization production experience, hundreds of precision processing and production equipment , The silk-like stamping precision can reach 0.01mm, the daily production capacity can reach 3 million stamping times, 16 quality inspection layers are strictly controlled, stamping parts are proofed in 2 days, 4 days out of mold, and delivery in 2 days, which can speed up the launch of new customer products in 5-9 days. time. Improve the assembly production efficiency by 17% and increase the product qualification rate by 1.3%. It is a partner of many Fortune 500 companies. It can quickly solve the time-critical problems of stamping parts processing customization, solve the stamping accuracy problems, and solve the production quality problems for you.