Anti -corrosion protection of tanks: methods, materials and importance for durability

Introduction

Steel tanks are widely used for storage of petroleum products, chemicals, water and other liquids. However, due to constant contact with liquids and environmental impact, steel is prone to corrosion, which can reduce the strength of construction, leaks and accidents. That is why anti -corrosion protection of tanks is critical for ensuring their durability, safety and compliance with regulatory requirements. In this article we will look at the basic methods of combating corrosion, materials for protective coatings and their role in preserving the design.

Basic methods of anti -corrosion protection of tanks

1. Sandblasting and Droboscurum Processing

The surface of the tank must be carefully prepared before applying the anti -corrosion coating. To do this, use sandblasting or fractional processing , which allows to clean the metal of oxides, old coatings and contaminants. This method creates a rough surface that improves the adhesion (clutch) of anti -corrosion coating with metal.

🔹 Advantages:
✔ High cleaning efficiency.
✔ Improved protective coating adhesion.
✔ Removal of corrosion oxides.

2. Protective coatings: paints, enamels and polymers

One of the most common methods for protecting corrosion tanks is to apply anti -corrosion paints and coatings . The main types of materials include:

Вати Epoxy coatings - provide resistance to mechanical stress, chemical exposure and aggressive liquids.
Вати Polyurethane paints - protect tanks from ultraviolet radiation and atmospheric effects.
( cold or hot zoing) - create an additional barrier to prevent corrosion.
 Bituminous coatings - are used for tanks that are underground or in contact with a wet environment.

The choice of coating depends on the purpose of the tank, the type of stored liquid and the operating conditions.

3. Cathode protection

Cathode protection is an electrochemical method that prevents corrosion of metal by connecting it to an external current source or victim anode.

🔹 Cathode protection methods:
✔ Precise anode protection - uses magnesium, zinc or aluminum anodes that "sacrifice" themselves, gradually oxidized instead of steel.
✔ Forced cathodic protection - uses a constant electric current to shift the steel potential towards the protected state.

This method is especially effective for underground or underwater tanks , as well as those used in aggressive environments.

4. Using stainless or special steel

Another way to increase corrosion resistance of tanks is to use special steel brands . For example, stainless steel or high chromium and nickel steel resist corrosion processes for much longer.

🔹 Advantages:
✔ Long service life without the need for regular repairs.
✔ High chemical resistance.
✔ Reducing maintenance costs.

However, stainless steel is much more expensive , so its use is only appropriate in cases where the tanks retain especially corrosive substances.

Why is anti -corrosion protection critically important?

Corrosion is one of the main reasons for failure tanks , which can lead to leakage, environmental pollution and significant financial costs for repair or replacement.

🔹 The main risks of lack of protection:
⚠ leakage of dangerous liquids.
⚠ Loss of strength and deformation of the structure.
⚠ increased costs for repair and recovery.
⚠ Output of the tank of previously calculated period.

Timely treatment of tanks with protective materials, regular control of the condition of metal and the use of modern methods of combating corrosion can significantly extend the life of the tanks , minimizing the cost of maintenance.

Conclusion

Anti -corrosion protection of tanks is not only a requirement of safety standards, but also a key factor in extension of their operation . The use of sandblasting, special protective coatings, cathode protection and steady steel brands minimizes the risks of damage and provide long -term safe operation .

The use of correct anti -corrosion protection depends on the operating conditions, the type of fluid and the material of the tank , so it is important to choose the right method of corrosion control to guarantee effective and durable storage of liquids .

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