How to oil removal vacuum plating product?
Vacuum plating sucking in indoor air, after reaching a certain degree of vacuum, vacuum plating tungsten electricity will indoor heating. When after reaching a certain temperature, vacuum plating on the tungsten wire placed by gasification, then as interior the rotation of the uniform deposition on the surface of workpiece, vacuum plating forming metal film. General common vacuum plating with metal aluminum, nickel, copper and so on. Vacuum plating but due to the melting point, process control and so on reasons, aluminum plating as the most popular method.Vacuum plating for hardware series products on the surface of the parts are attached to the good after surface treatment, vacuum plating pretreatment must be strictly, carefully before operation, so that reached the standard of pretreatment. Vacuum plating middle oil removal, vacuum plating this technological process is lye can skim by soaking method or jet cleaning method to finishing.
Lye before vacuum plating technology used in the oil removal conditions according to the material and plating parts surface oil, vacuum plating, such as alkaline materials parts can be use strong alkaline cleaning fluid, vacuum plating deoiling temperature can also be high, in order to improve the oil removal efficiency and speed, and parts of zinc, aluminum, copper and other materials, such as can‘t use strong alkaline solution, such as sodium hydroxide temperature is not too high lest produce corrosion, vacuum plating used in hard water made of acid and alkali wash, should join complexing agent. After general alkali degreasing, vacuum plating the surface of the parts has yet to reach the surface processing requirements of the standard of shipment, vacuum plating and electrolytic degreasing process must be conducted to meet the shipping requirements or go to the next working procedure.
