Advantages of punching mesh after hot galvanizing

If the iron plate perforated mesh products do not pass the surface treatment, it is very simple to rust. Generally, it is required to stop the surface treatment, and the most common treatment method is hot galvanizing. The principle of hot galvanizing is to clean the surface of the perforated mesh products, and then dispose them with solvent. After drying, they are immersed in zinc solution, and iron and molten zinc form an alloyed zinc layer.

The process is: degreasing - water washing - pickling - plating aid - drying - hot-dip galvanizing - separation - cooling and passivation. The thickness of the alloy layer of the product depends on the chemical composition such as the silicon content of the plate, the cross-sectional area of the plate, the roughness level of the product surface, the temperature of the zinc pot, the time of zinc dipping, the speed of cooling, cold rolling deformation, etc. The advantages of hot galvanizing are.

Good reliability: The zinc layer and the punching mesh are metallurgical contacts and become part of the steel surface, so the durability of the coating is more reliable. Low disposal cost: the cost of hot-dip galvanizing rust prevention is lower than that of other paint coatings, and the price is more advantageous. Durability: The standard hot-dip galvanized anti rust coating can last for 20 years without repair, while the service life of other disposal methods is generally not more than 10 years.

The galvanizing process is more convenient than other coating methods, and can prevent the time required for painting on the site after the installation. Low initial cost: In general, the cost of hot-dip galvanizing is lower than that of applying other protective coatings for simple reasons. Other protective coatings, such as sanding and painting, are labor-intensive processes. On the contrary, the process of hot-dip galvanizing is highly mechanized and closely controlled in plant construction.

The coating has strong resistance: the zinc coating forms an extra metallurgical structure, which can withstand mechanical damage during transportation and application. Comprehensive protection: Each part of the punching mesh can be coated with zinc, even in depressions, sharp corners and hiding places.