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Precautions for purchasing contact shrapnel
Contact shrapnel belongs to the category of hardware shrapnel and electronic hardware materials. It is an important part of various electronic products (mobile phones, connectors, car batteries). It is made of metal materials. When the contact shrapnel mounted on the conductive film is pressed, the center point of the shrapnel contacts the PCB board to form a loop, and the current passing through it has the characteristics of strong conductivity and good hand feeling.
Production process of contact shrapnel: In cold stamping with stamping die, a special process of processing metal materials into parts. Stamping is at room temperature, using a die installed on a press to apply pressure to the material to separate it Or plastic deformation, so as to obtain a stamping processing method for the required hardware.
As an important hardware component in the electronic system, the contact shrapnel has a large amount of use, and there are many types. The production of the metal shrapnel is original hand-made, and gradually moves towards mechanical automation. At the same time, the process performance of the metal shrapnel is also Follow an upward trend.
Precautions for purchasing contact shrapnel:
1. Materials used for contact with shrapnel:
When making contact shrapnel, you should choose appropriate materials normally. If you can't see that it is cheap, choose it. Each material can also be divided into several different small materials, but many manufacturers can distinguish which materials produce high-quality products. Therefore, we should pay attention to the materials used when purchasing contact shrapnel.
2. Strength of contact with shrapnel:
Many foreign customers have very strict requirements on the strength of the contact shrapnel, that is to say, the strength of the contact shrapnel we use must be uniform, and there can be no high and low strength. Of course, we can control it to a certain level. Force tolerance (±20gf) range.
3. Life of contact shrapnel:
At present, the service life of many contact shrapnels in our country is not up to the standard. Although the price is relatively cheaper, we cannot buy inferior contact shrapnel because of the cheapness of the contact shrapnel, so we choose When touching the shrapnel, pay attention to its useful life.