What material is used for the shielding cover of mobile phone and motherboard module

To avoid the motherboard Western white copper shielding coverWhen encountering short circuits with other electronic components during work, it is necessary to use insulation coating technology on the inner top layer of the shielding cover. When the device comes into contact with the shielding cover, due to the insulation coating... The material used to make the shielding cover is mostly white copper, which is cut into rolls according to the width of the shielding cover size. Ordinary shielding covers without insulation coating can be directly produced by stamping this type of coil material.

To make an insulation coating, it is necessary to first customize a punching and positioning mold based on the size of the shielding cover step distance. This is to punch small holes on this rolled material first and accurately position each step.

3. After stamping the positioning hole, use it to control the size to the first step, and then screen print the insulation coating on the surface of the phosphor bronze.

After the silk screen printing is completed, the coated material is quickly dried in an oven and then rolled into a roll for easy feeding during stamping of the shielding cover.