Here are some ways to avoid PCB corrosion and oxidation:
1. Choose appropriate materials: Choose materials with good corrosion resistance and oxidation resistance, such as stainless steel, aluminum alloy, etc. At the same time, materials that meet specification requirements need to be selected to avoid corrosion and oxidation problems caused by the use of inferior materials.
2. Surface treatment: Clean, remove oxidation layer, and coat the PCB surface to enhance its anti-corrosion and anti-oxidation capabilities. For example, surface treatment methods such as chemical copper plating, gold plating, and tin plating can be used.
3. Manufacturing environment control: During the manufacturing process, it is necessary to control parameters such as ambient temperature and humidity to avoid exposing the PCB to high temperature and high humidity environments to reduce the possibility of corrosion and oxidation.
4. Coating protection: Coat a protective layer on the PCB surface to isolate air and moisture and prevent the PCB from being affected by corrosion and oxidation. For example, the PCB surface can be coated with coatings such as resin and paint.
5. Cleaning and maintenance: Clean the PCB surface regularly to remove dirt, dust and oxide layers to maintain its good electrical performance and appearance quality. At the same time, it is necessary to pay attention to maintenance and repair, and repair damaged parts in time to avoid further expansion of corrosion and oxidation.
6. Standardized operation: During the operation process, it is necessary to comply with the corresponding specifications and standards to avoid corrosion and oxidation of the PCB caused by improper operation. For example, avoid using inappropriate tools, excessive bending and twisting the PCB, etc.
In short, avoiding PCB corrosion and oxidation requires starting from many aspects, including material selection, surface treatment, environmental control, coating protection, cleaning and maintenance, and standardized operations. Only by taking comprehensive measures can the corrosion and oxidation problems of PCB be effectively reduced.