Hot-dip galvanized steel grille refers to hot-dip galvanizing and anticorrosive treatment on the surface of steel grille after welding. Generally, the surface treatment methods of steel grille include hot-dip galvanizing, cold-dip galvanizing and spray paint. Among them, hot-dip galvanizing has the best anticorrosive effect and high price, but it is the most commonly used steel grille. Hot-dip galvanizing is often called "hot-dip galvanizing". "Hot-dip galvanized steel grating is also called Fuzhou hot-dip galvanized steel grating.
In order to prolong the service life of hot-dip galvanized steel grilles, we should pay attention to the regular maintenance of hot-dip galvanized steel grilles after installation, besides the high technical requirements for installation when installing hot-dip galvanized steel grilles.
In the use of hot-dip galvanized steel grille, it is necessary to regularly clean up the surface booty, especially in chemical plants, strong acid, strong alkali and so on. It is very easy to damage the zinc layer on the surface of the steel grille. The corrosion resistance of the steel grille itself is not high. When the zinc layer on the surface of the steel grille falls behind, the steel grille will soon be corroded and gradually lose its role in protecting the hot-dip galvanized steel grille. The zinc layer on the surface of the steel grille is the most important thing in the later maintenance of the steel grille. Secondly, the hardness of the hot-dip galvanized steel grille varies according to the different materials. In use, overload should be avoided as far as possible, and appropriate load should be given according to the specifications of the hot-dip galvanized steel grille.
Every product has its service life. Why can some of the same products be used for a long time, while others are not? This involves a problem of late maintenance. Later maintenance room preserves the important aspect of the service life of hot-dip galvanized steel grilles, so late maintenance of hot-dip galvanized steel grilles is very important.
Measures to prevent white rust are:
1. Oil coating
Oil the galvanized steel sheet, isolate air and zinc. This method is relatively simple, but it can play a good role in preventing rust.
Galvanized steel sheets will be rustproof on the surface, so phosphate coating is suitable. Phosphates adhere tightly to the galvanized surface to form porous structure, which can provide a good foothold for paint.
Chromic acid three, chromic acid
When the galvanized steel lattice is immersed in the chromic acid solution, a low activity film will be formed on the surface. Even if the film is damaged, the surrounding chromate will be dissolved in water and form a new film on the damaged part. It is effective for preventing white rust.
In addition to surface treatment of galvanized steel grilles, attention should also be paid to the daily storage methods, such as waterproof and moisture-proof storage places, good ventilation, little temperature difference, etc. This prevents the white rust of galvanized steel sheets.
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