Pogopin is generally used in the precision connection of electronic products such as mobile phones, communications, automobiles, aerospace, etc. Because the pogo pin is a very fine The probe can be very small in size, so it can reduce the weight of the connector, save space, and beautify the appearance of products (such as ultra-thin mobile phones, smart wearables, drones, smart robots, etc.) when used in precision connectors.

In the electroplating of pogo pin connectors, the gold plating process occupies an obvious important position in the electroplating of pogo pin connectors due to the higher electrical performance requirements of the contact. At present, except for the selective gold plating process for some strip spring pin connectors, the gold plating in the holes of a large number of pinhole parts is still carried out by barrel plating and vibration plating. In recent years, the size of the connector has become more and more miniaturized, and the quality of the gold plating in the pinhole parts has become more and more prominent. Users have higher and higher requirements for the quality of the gold layer. Some users have a higher quality Even reached a very critical level. In order to ensure the quality of the gold plating layer of the connector, these common quality problems are always the key to improving the gold plating quality of the connector.

1. The color of the gold layer is abnormal

The color of the gold-plated layer of the pogo pin connector is inconsistent with the normal color of the gold layer, or the color of the gold layer of different parts in the same accessory product is different.

2. The impact of raw material impurities

When the impurities introduced by the chemical materials added to the plating solution exceed the tolerance of the gold plating solution, it will quickly affect the color and brightness of the gold layer. If it is affected by organic impurities, the gold layer will become dark and bloom. The location of the darkening and blooming of the test piece is not fixed. If the interference of metal impurities, the effective range of current density will be narrowed. The test of the Hauer slot test shows that the current density of the test piece is not bright at the low end or the high end is not bright and the low end is plated. Can not be plated. It is reflected in the plated parts that the plating layer is reddish or even black, and the color changes in the holes are more obvious.

3, the current density is too large

Due to the calculation error of the total area of ​​the parts of the plating tank, the value is larger than the actual surface area, so that the gold plating current is too large, or the amplitude is too small when vibrating gold plating, so that all or part of the plating parts in the tank are crystallized coarsely. The gold layer was reddened visually.

Introduction of pogo pins

Pogo pin connector is a kind of connector, its function is very simple is to play the role of a connection. The pogo pin connector can be formulated according to actual work requirements, and different specifications can also be selected in the formulation. The main function of the pogo pin connector is to connect, the pogo pin connector can maintain a continuous working current, and the size of the current can be customized according to customer needs. Its working voltage is below 12 volts, and the pogo pin connector has good elasticity and contractility, which plays an important role in the connection.