ZhiJian Hardware

It is also called the dead-key condition of the dome slices, which is fatal to the dome-shaped slices; it immediately causes all the goods to be unable to work normally, so how can it lead to the dead-key condition of the dome-shaped slices? , let's briefly analyze it:

1. The thickness of the basic pot is 0.06mm, and its service life is 50-150 thousand times (depending on the load requirements).

2. The springback value of the basic design scheme of the pot slices is ≧40gf. When it is less than the value of the special design scheme of 40gf, it will reach the limit of the service life with the increase of the service life, and the situation of non-resilience dead KEY will occur;

3. The material of the pot is impervious steel, the wall thickness is generally located in the [0.06~0.1mm] section, and the load value of the basic design scheme is 100~300gf. When doubled, it is easy to cause non-resilience

4. When tearing off the release film before attaching the PCB board, or when manufacturing the dome patch type, when the actual operation is bent, the sheet metal bending caused by the external force is also very easy to occur. Non-resilient dead key condition (damage or wrinkle the dome, or change the concave structure of the dome itself due to external force)

5. There is no design scheme for the air permeability groove of the dome-shaped patch type. When the dome-shaped itinerary is arranged, the air cannot be discharged, resulting in the dead key state caused by the load not moving;

6. When there is no pre-embedded prestressed tensioning schedule in the design scheme, the silicone material or plastic positioning pins will work on the pot for a long time, making the pot heavy, reducing the life of the pot, resulting in dead keys or serious damage. According to the effect;