Surface treatment is the process of forming a covering layer on the surface of the workpiece by a certain method. Its purpose is to give the product surface a beautiful and anti-corrosion effect. The surface treatment methods performed are attributed to the following methods: 1. Electroplating: Immerse the electroplated parts in an aqueous solution containing the deposited metal compound, and pass current through the plating solution to cause the electroplated metal to be deposited and deposited on the parts. Generally, electroplating includes zinc, copper, nickel, chromium, copper-nickel alloy, etc. Sometimes boiled black (blue), phosphating, etc. are also included. 2. Hot-dip galvanizing: It is completed by immersing the carbon steel parts in a molten zinc plating tank with a temperature of about 510℃. The result is that the iron-zinc alloy on the surface of the steel gradually becomes passivated zinc on the outer surface of the product. Hot-dip aluminum plating is a similar process. 3. Mechanical plating: impact the surface of the product through particles of the coated metal, and cold weld the coating to the surface of the product. Generally, the screws are mostly electroplated, but the hexagonal wood screws used in electric power, highways and other outdoor use hot-dip galvanizing; therefore, the packaging of all fasteners is particularly important. Contact us to customize various vertical hardware counting and packaging machines.
