vacuumElectroplating processingThe cleaning treatment of the surface is very important, which directly affects the quality of the electroplated product. Before entering the coating room, the processed parts must be carefully cleaned before plating. Surface pollution comes from various dust, lubricating oil, machine oil, polishing paste, grease, sweat stains, etc. adhered to the workpiece during processing, transmission, and packaging. To avoid defects caused during the processing, vacuum plating processing manufacturers can basically use degreasing or chemical cleaning methods to remove them. Clean surfaces that have undergone cleaning treatment should not be stored in an atmospheric environment, but should be stored in closed containers or cleaning cabinets to reduce dust contamination. Storing glass substrates in freshly oxidized aluminum containers can minimize the adsorption of hydrocarbon vapors. Because these containers prioritize the adsorption of hydrocarbons. Vacuum coating processing for highly unstable and water vapor sensitive surfaces should generally be stored in a vacuum drying oven。

The vacuum coating process requires the removal of dust from the coating room, the establishment of a high cleanliness workshop, and the maintenance of high indoor cleanliness, which are the basic environmental requirements of the coating process. In areas with high air humidity, in addition to carefully cleaning the substrate and various components in the vacuum chamber before plating, baking and degassing should also be carried out. To prevent oil from entering the vacuum chamber, pay attention to the return of oil from the oil diffusion pump. For diffusion pumps with high heating power, oil blocking measures must be taken.