Anti-corrosion treatment method for surface of metal part

Abstract

The invention discloses an anti-corrosion treatment method for the surface of a metal part. The anti-corrosion treatment method is characterized in that coating is carried out on the surface of the metal part, wherein coating layers comprise a tin-plated layer, a zinc-plated layer, a nickel-plated layer, a copper-plated layer and a silver-plated alloy coating layer, the chromate treatment is firstly carried out in the process of manufacturing the zinc-plated layer, so that a chromate conversion coating is formed, the silver-plated alloy coating layer is a silver-plated copper alloy layer and contains copper with the 1.3% mole fraction, the nickel-plated layer adopts copper alloy as a bottom coating, the zinc-plated layer is an anode coating, and the nickel-plated layer and a chromium-plated layer are arranged outside the copper-plated layer for protection. According to the anti-corrosion treatment method for the surface of the metal part, the extremely high corrosion resistance is achieved, the service life of the metal part can be effectively prolonged, and a good market prospect is achieved.

Description

technical field [0001] The invention belongs to the field of mechanical parts processing, and in particular relates to a method for anti-corrosion treatment of the surface of metal parts. Background technique [0002] At present, the working environment of most mechanical equipment is complex and diverse, so the corrosion resistance of parts becomes very important. Doing a good job of anti-corrosion measures for parts will greatly prolong the working life of mechanical equipment, especially metal parts, due to air humidity, etc. The reason is more prone to corrosion. In the prior art, the general anti-corrosion measure for metal parts is to paint the surface of the metal parts. This method can be effective in a short time. As time goes by, the paint will slowly fall off. Frequent brushing Paint also wastes a lot of manpower and material resources. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and p...

AI Technical Summary

Problems solved by technology

[0002] At present, the working environment of most mechanical equipment is complex and diverse, so the corrosion resistance of parts becomes very important. Doing a good job of anti-corrosion measures for parts will greatly prolong the working life of mechanical equipment, especially metal parts, due to air humidity, etc. The reason is more prone to corrosion. In the prior art, the general anti-corrosion measure for metal parts is to paint the surface of the metal parts. This method can be effective in a short time. As time goes by, the paint will slowly fall off. Frequent brushing Paint will also waste a lot of manpower and material resources