We can provide various specifications of metal shielding covers, shielding shells, shielding connections, and fasteners made of copper, cold-rolled steel, and aluminum materials. Specific design and customization can be carried out according to the needs, product location, and specific indicator requirements.
Copper and cold-rolled steel shielding components
We can provide various specifications of shielding covers, inner and outer conductor shielding covers, as well as fasteners and connectors that require shielding function, made of copper and cold-rolled steel materials according to the usage environment and specific requirements. Copper has a conductivity second only to silver, and can efficiently reflect electromagnetic waves with a shielding efficiency of over 90dB. It can be made into complex structures (such as protrusions and hollow designs) through stamping, welding, and other processes to meet different usage scenarios. The advantages of cold-rolled steel are high strength and low cost, with a yield strength of ≥ 275MPa, suitable for load-bearing structures, and lower price than copper; Secondly, cold-rolled steel has good electromagnetic shielding function. By using cold rolling technology to increase density and combining with welded shell design, the shielding efficiency reaches 80-100dB. Widely used in fields such as mobile phone motherboard shielding covers and aerospace.
Parameter | Copper material | Cold-rolled steel material |
Material model | C1100, C2680 (pure copper or tin plated copper) | SPCC, SECC (cold-rolled steel substrate) |
Electrical conductivity | 5.8×10⁷ S/m | 1.0×10⁶ S/m |
Density | 8.96 g/cm³ | 7.85 g/cm³ |
Shielding effectiveness | ≥90dB | 80-100dB |
Mechanical strength | Low yield strength, easy to process | ≥275MPa |
Corrosion resistance | Tin plating/anti oxidation coating is required | Galvanized/sprayed anti-corrosion coating is required |
Typical Applications | High frequency precision equipment (such as mobile phone shielding covers) | Shielding and isolation of larger modules such as power supply and distribution |
Aluminum shell
We offer a variety of aluminum shell specifications, which are integrated through CNC precision machining to reduce seams, improve structural sealing, and have the advantages of high strength and light weight. Aluminum’s high conductivity can effectively shield electromagnetic interference, making it suitable for precision instruments and communication equipment, and widely used in the fields of electronics, aerospace, and military industry.
Parameter | Typical Value | Description | |
Substrate material | 6063 Aluminum alloy | Thermal conductivity of 200W/m · K | |
Copper pipe specification | Outer diameter of 10mm and a wall thickness of 1mm after flattening | | |
Channel design | Parallel channel/Serpentine channel | Serpentine channel improves heat dissipation uniformity by 20% | |
Contact thermal resistance | ≤ 0.01 K · cm ²/W | Epoxy resin adhesive filling reduces interface thermal resistance | |
Heat dissipation capability | Single board heat dissipation power: 200-800W | Depending on channel density | |
Temperature difference control | ≤ 3 ℃ | Deep buried pipe design | |
Weight | 0.1-1kg |
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Customized Consultation
wechat: yao13521681306
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Email: wuyanlitong_002@126.com
Add: Room 301,Unit 1,Liandong U valley science and technology park. No.21,shuiyuan west road, Miyun district,Beijing China.