Introduction of galvanized coating
The most widely used steel material in the industry will be corroded to varying degrees when used in environments such as the atmosphere, sea water, soil, and building materials. According to statistics, the annual loss of steel materials due to corrosion in the world can account for about 1/3 of its total output. In order to ensure the normal use of steel products and prolong their service life, the anti-corrosion protection technology of steel has been widely valued by people.
Hot dip galvanized
Hot-dip galvanizing is one of the most effective means to delay the environmental corrosion of steel materials. It is to immerse the cleaned and activated steel products in molten zinc liquid, and through the reaction and diffusion between iron and zinc, the steel products The surface is coated with zinc alloy coating with good adhesion. Compared with other metal protection methods, the hot-dip galvanizing process has the protection characteristics of the combination of physical barrier and electrochemical protection of the coating, the bonding strength of the coating and the substrate, the compactness, durability, maintenance-free and economical properties of the coating. It has incomparable advantages in terms of flexibility and adaptability to the shape and size of products.
Pre-galvanized
The difference between the processing technology of pre-galvanized steel pipe and hot-dip galvanizing mainly lies in the raw materials used. The raw material of pre-galvanized steel pipe is mainly galvanized steel coil, which is mainly produced by continuous galvanizing process, that is, the coiled steel plate is continuously dipped in a galvanized bath with molten zinc to make a galvanized coil. After the factory processes the galvanized coil into a steel pipe, it no longer needs to be galvanized again, and only needs to supplement zinc to the welded part. The advantage of pre-galvanizing is that the zinc layer is more uniform and the appearance is more beautiful. The pre-galvanizing process is favored by people because of its low plating cost, excellent protection characteristics and beautiful appearance, and is widely used in construction, machinery, solar energy and other fields.
Zinc Aluminum Magnesium
Zinc-aluminum-magnesium is a kind of alloy metal, which is used to treat the corrosion of the surface of steel and steel products. Galvanized aluminum-magnesium sheet is a kind of sheet that was successfully developed in 2000, in order to replace stainless steel products and improve the performance of galvanized sheet. The advantage is that the cost is reduced, the incision has good corrosion resistance and can be repaired automatically. Good processing performance, environmental protection and long service life, with corrosion resistance.
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Post time: Mar-03-2023