Posted on 2018-08-07 Fastener surface treatment refers to the process of forming a cover layer on the surface of a fastener by some means. After surface treatment, the fasteners can present a more aesthetic appearance and their corrosion resistance will be improved.There are several ways to form the fastener coating.
1. Electroplating of fastenersElectroplating of fasteners means immersing the portion to be electroplated into a specific aqueous solution containing some deposited metal compound and then passing an electric current through the aqueous solution, and the metal material in the solution is deposited and adhered to the immersed portion of the fastener. The plating of fasteners generally includes galvanizing, copper, nickel, chromium, copper-nickel alloy…………
2. Hot dip galvanizing of fastenersThe hot dip galvanizing of the fastener is to immerse the carbon steel component fastener into the plating bath of the molten zinc having a heat of about 510 ° C, so that the iron-zinc alloy on the surface of the fastener is converted into passivated zinc, thereby obtaining a surface treatment effect…
3. Mechanical plating of fastenersMechanical plating of fasteners refers to the impact of the surface of the fastener by a specific physical and chemical means, with a powder of coated metal. In this way, the plated metal is formed into a coating on the surface of the fastener by cold welding to achieve a surface treatment effect. Mechanical plating of fasteners is mainly suitable for spare parts such as screws, nuts and gaskets.
Post time: Jan-13-2022