Hot Dipped Galvanized Tank: Know About The Features And Advantages Of The Material

If you are looking for the best liquid storage solutions in any industry, Hot dipped galvanized tank in Johanasburg is the appropriate solution for you. You have already seen other varieties available on the market, but these square-shaped steel tanks are ready affordable and beneficial option for most of the industry owners. Hot-dip galvanized is an effective metal anti-corrosion. Rust steel immersed in liquid zinc melts at around 500 °C, and steel members are attached to the surface of the zinc layer, which performs the purpose of anti-corrosion.

In addition, Simple hot-dip galvanizing technology can significantly increase the service life of the metal. We will tell you about the methods of metal coating and the types of equipment used.

What Is The Process Of Making A Hot Dipped Galvanized Tank?

Hot dip galvanizing is a process of coating iron and steel with zinc, which bonds with the surface of the base metal in a bath of molten zinc at a temperature of about 449 degrees (840 degrees F) and results in a physical bond between zinc and iron. In nature, pure zinc reacts with oxygen to form zinc oxide (ZnO), which further reacts with carbon dioxide to form zinc carbonate (ZnCO3) which protects the steel underneath from further corrosion.

Features Of Hot Dipped Galvanized Coating

The main of this material is widely used in applications where corrosion resistance is required without the cost of stainless steel and is therefore considered superior in terms of cost and life cycle. The signature of galvanizing is the pattern of crystallization on the surface of the metal, and the zinc coating will corrode completely before the underlying steel begins to corrode. The cost of hot-dip galvanizing is much lower than painting or powder coating. Along with the hot-dip galvanizing tank, the HDG steel water tank in Johanasburg has been used around the world for more than a century because it provides long-lasting, low-maintenance corrosion protection.

Steps Of Hot Galvanizing

Hot-dip galvanizing is the process of applying a protective zinc coating to a welded metal structure by immersing it in a bath of molten zinc. There are three main steps in the hot-dip galvanizing process:

Surface Preparation For Hot-dip Galvanizing:

When manufactured metal structures enter production for galvanizing, they are suspended using wire or equipment on a technological crossbeam, which is subsequently moved by cranes.

The steel products then undergo a series of three preparation steps: degreasing, pickling, and fluxing. Degreasing removes dirt, oil, and organic residues, while acid etching removes scale and iron oxide.

The final surface preparation step, fluxing, removes any remaining oxides and coats the steel with a protective layer to prevent further oxidation before galvanizing. Proper preparation of the product is very important so that the zinc will not react with a contaminated steel surface.

Galvanizing:

After surface preparation, the steel structure is immersed in a molten bath containing at least 98% zinc. The structure is lowered at an angle that allows air to escape from tubular molds or other pockets so that the zinc can circulate freely within the product. While the part is in the galvanizing bath, the iron in the steel reacts with the zinc to form an iron-zinc bimetallic layer and an outer layer of pure zinc.

Control:

The final step is quality control of the coating. In the first stage, a visual check of the quality of the coating is carried out. At the next stage, the thickness of the zinc coating is monitored using a magnetic thickness gauge. The coating parameters are assessed for their compliance with the requirements of GOST 9.307-89.

Advantages Of Using Hot Galvanized Coating On Tank

Hot-dip galvanizing provides several benefits to the tank it protects.

• Low processing cost: hot-dip galvanized anti-rust cost is lower than the cost of other paint coatings.

• Durable: the standard thickness of hot-dip galvanized rust can be maintained for 50 years or more in a rural environment without having to patch. Standard hot dip galvanized rust layer can be maintained for 20 years in urban or offshore areas without having to patch.

• Good reliability: the galvanized layer with steel is metallurgically bonded to become part of the steel surface and therefore a more reliable persistent coating.

• The hardness of the coating: zinc coating forms a special metallurgical structure, this structure can withstand the transportation and use of mechanical damage.

• Complete protection: plated parts Each part can be plated with zinc, even the recesses, sharp corners, and hiding places can be fully protected.

• Saving Time and Effort: The galvanizing process is faster than other coating construction methods and can avoid the brushing time required on-site after installation.

All these and other benefits provide a Hot dipped galvanized tank with a long service life without additional maintenance.

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