Introduction of three important methods for surface treatment

Raisingelec can provide all kinds of fasteners.

The surface treatment of fasteners refers to the process of forming a covering layer on the surface of fasteners by certain methods. After the fasteners are surface-treated, they can show a more beautiful appearance, and the fasteners themselves are corrosion-resistant. Ability will also be improved. The surface treatment methods of fasteners are as follows.

The hot-dip galvanizing of fasteners is to immerse the fasteners made of carbon steel into a molten zinc plating bath with a heat of about 510 ° C, so that the iron-zinc alloy on the surface of the fasteners will be converted into passivation zinc, thereby Get a surface finish. The price of hot-dip galvanized fasteners is higher than that of electroplating, about 1.5 to 2 yuan per kilogram.

Mechanical plating of fasteners refers to impacting the surface of fasteners with the powder of the plated metal through specific physical and chemical means, so that the plated metal forms a coating on the surface of the fastener through cold welding to reach the surface of the fastener. processing effect. Mechanical plating of fasteners is mainly suitable for spare parts such as screws, nuts and washers.

The electroplating of fasteners refers to immersing the part of the fastener that needs to be plated in a specific aqueous solution, and the aqueous solution will contain some deposited metal compounds, so that after passing the current through the aqueous solution, the metal substances in the solution are precipitated and adhered to. on the immersed portion of the fastener. The electroplating of fasteners generally includes zinc, copper, nickel, chromium, copper-nickel alloys, etc.

Post time: Jun-22-2022