Do you know how to clean copper fittings?

During the production and processing, after mechanical processing or long-term storage, the surface of copper fittings for electronic components will have pollutants such as mechanical processing oil stains, oxide scales, and dust. Using ordinary cleaning agents not only makes it difficult to clean them completely, but also makes the phenomenon of secondary oxidation very likely to occur. So, what should we use to clean the copper fittings of electronic components?

In recent years, with the enhancement of people's awareness of environmental protection, the cleaning process of copper fittings for electronic components has also become more efficient and environmentally friendly. Nowadays, the latest cleaning process for copper fittings  of electronic components can already meet the needs of the vast majority of manufacturers of copper fittings for electronic components.

Now, we use a hydrogen peroxide-based copper chemical polishing process, which can effectively remove oil, rust, polish, and provide passivation protection, and it will not affect the electrical conductivity of the copper fittings.

1. Oil removal

The oil remover used in the latest cleaning process for copper fittings of electronic components is a water-based industrial cleaning agent with a high concentration of the original solution. Its ingredients do not contain heavy metal elements, sodium nitrite, etc., and also contain high-quality surfactants and cleaning aids, which can quickly and thoroughly clean oil stains.

2. Polishing

The copper polishing agent is a polishing agent in a hydrogen peroxide system. After more than a decade of development, the technology of copper polishing agents has been continuously innovated. Currently, copper polishing agents not only have good effects but are also very environmentally friendly.

3. Passivation

The copper passivating agent we are using now is a chromium-free passivating agent. The chromium-free passivating agent does not contain hexavalent chromium or trivalent chromium, has excellent environmental protection performance, and the formed passivation film does not affect the electrical conductivity and has good corrosion resistance.