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Dip strip - HOT-DIP GALVANIZING

Galvanizing strip

For the application of anti-corrosion coating on the metal is most often used in the production of galvanizing. This technology is used for processing metal strips, which are used as ground loops. They are responsible for protecting the building from lightning and electrical safety. Coating has become popular in various fields due to its properties.

Galvanizing strip is a popular service. The company "EZI" carries out metal processing in a hot way. This method allows you to protect the metal product from corrosion and extend the service life of at least 50 years. The main advantages of galvanizing include affordable price and efficiency.

How is the protection of hot-rolled steel strip?

If we talk about non-ferrous metals, then in contact with oxygen they form a gas-tight thick film that protects against destruction. This cannot be said about iron. It is unable to possess such properties. Oxides are distinguished by their loose structure, and therefore calm air is passed. As a result, this leads to a negative effect of oxygen on the metal surface. On it corrosion is formed and the steel product begins to collapse.

If a layer of zinc is applied to the surface, it creates a protective dense film. It protects iron from destruction and prevents air from penetrating the metal.

Galvanizing strip

Hot-dip galvanizing strip method

Our company managed to establish a working process for hot-dip galvanizing according to GOST 9.307-89. The development uses the best modern equipment, which stabilizes the workflow. It makes quality durable and reliable in operation. The thickness range of the protective coating is created from 40 µm to 200 µm. At the moment, the method of galvanizing strip sizes 4x40 and 25x4 6 meters and 12 meters consists of two main stages: preparation and immersion in the zinc melt:

  • fluxing;
  • degreasing;
  • washing;
  • drying;
  • etching.

The degree of purification of the steel strip must fully comply with the requirements specified in GOST 9.402-2004. The main is the immersion of the product in the bath with molten metal. Zinc is heated to the melting temperature, or rather to +450°C. as a result, a stable and durable layer of zinc is formed. The new coating is also regulated by GOST 9.307-89 and should be fully suitable for its properties.

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