Coated metal can affect the actual service life of automotive connectors

To improve the service life of automotive connectors, a metal layer is usually plated on the surface of the connector to achieve the purpose of anti-oxidation and anti-wear, thereby effectively extending the service life.
The service life of automotive connectors is closely related to the properties of the coated metal. If any abnormalities occur during the gold plating process, it will not only cause color difference in the coating, but also indirectly shorten the actual service life of the connector. The following are several key factors that affect the quality of the coating:

1. Impurities in the gold plating raw material can cause color differences in the metal coating of automotive connector terminals
When making plating solution materials for automotive connector terminals, impurities exceeding the tolerance of the gold plating solution can affect the color and brightness of the gold layer. Organic impurities can cause the metal layer to appear dark and shiny; Interference from metal impurities can cause the coating to turn red or even black.

2. Excessive gold plating current density can also affect the color difference of automotive connector terminals
When calculating the total area of plating bath parts, if the numerical calculation is incorrect and exceeds the actual surface area, it will cause abnormal gold plating current and visible red metal layer.

3. Aging of gold plating solution can also affect the gold plating results of automotive connector terminals
The prolonged use of gold plating solution can easily lead to excessive accumulation of impurities in the solution, resulting in abnormal color of the gold layer.
In addition, mutual insertion and removal during gold plating can easily lead to the coating effect of automotive connector terminals, thereby affecting the service life of automotive connectors.