Today, alloy steel nut manufacturers talk about the surface treatment method of standard parts.

1. Electroplating of standard parts.

Electroplating of standard parts refers to the part of the fastener that needs to be electroplated is immersed in a specific aqueous solution, which will contain some deposited metal compounds, so that after passing the current through the aqueous solution, the metal substances in the solution will precipitate and adhere to the immersed part of the fastener. Electroplating of standard parts generally includes zinc plating, copper, nickel, chromium, copper-nickel alloy, etc.

2. Hot dip galvanizing of standard parts.

The hot dip galvanizing of standard parts is to immerse the standard parts of carbon steel components into a plating bath with a heat of about 510 ° C, so that the iron-zinc alloy on the surface of the standard parts will be transformed into passivated zinc, so as to obtain the surface treatment effect. The price of hot-dip galvanized treatment of standard parts is higher than that of electroplating.

3, mechanical plating of standard parts.

The mechanical plating of standard parts refers to the impact of the powder of the coated metal on the surface of the fastener through specific physical and chemical means, so that the coated metal forms a coating on the surface of the fastener through cold welding to achieve the surface treatment effect. Mechanical plating of standard parts is mainly suitable for spare parts such as screws, nuts and gaskets.

The surface treatment of standard parts, the main purpose is to make the fastener itself obtain anti-corrosion ability, in order to increase the reliability and adaptability of the use of standard parts, so the quality of the surface treatment of standard parts is mainly to check whether the anti-corrosion ability of standard parts is effectively increased, and whether the increase is in line with the expected requirements.