Passivation treatment of steel structures to reduce the degree of corrosion

General steel structure manufacturers chemical cleaning of steel structure is the last process step, is a key step, the purpose is to prevent corrosion of materials, after pickling, water washing, rinsing, the metal surface is very clean, easy to suffer corrosion, so it must be immediately passivation treatment, so that the surface after cleaning to generate protective film, slow down corrosion.

The first is the treatment before passivation. Steel structure in the conventional environment for a long time, its surface will have grease, oxidizing dirt and other pollution, so it must be effectively eliminated before passivation, in order to ensure a better passivation effect.

Secondly, in the passivation process of steel structure processing, it is important to grasp the passivation time and passivation thermometer related passivation agents. Be sure to choose a relatively mature, high-performance, environmentally friendly stainless steel passivation agent, although the concentration of passivation agents will reduce the passivation time, but a longer time to obtain better passivation performance.

After the passivation is completed, it is not completely over, and stability treatment is needed, and post-treatment agents are used in order to effectively improve the passivation stability of the steel structure.

In order to extend the service life of steel structure engineering, passivation treatment should be carried out during processing, so that its corrosion rate can be reduced. And passivation treatment is not a simple matter, so steel structure manufacturers need to strictly comply with the operating process.