The part cleaning line is the "pre-treatment core" in electroplating production, and its function is to completely remove impurities such as oil, rust, scale, dust and other impurities on the surface of the workpiece - if impurities remain, it will directly lead to defects such as pinholes, bubbles, and peeling off of the subsequent coating. At the same time, the cleaning line is also used for "post-cleaning" after electroplating to remove the remaining plating solution (such as chrome plating liquid, nickel plating solution) on the surface of the workpiece to avoid corrosion and contamination. Conductive oxidation is the key process to achieve the dual functions of "protection and conductivity" of light metals, and its equipment is mainly based on tank immersion production lines, and the core is to accurately control the chemical reaction parameters. The parts cleaning line is the "pre-guarantee" of electroplating (and conductive oxidation), which realizes the cleanliness of the workpiece surface through multi-unit collaboration, and its equipment development trend focuses on environmental protection, intelligence and targeted design. The two work closely together in production to determine the performance and quality of the final product.