Galvanized sheet

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  • Gold
  • 7 Year

Technical Analysis of Galvanized Sheet: Why is this standard industrial product in the protection of corrosion?


Galvanized sheet, as one of the most basic and widely used products in the metal industry, refers to the steel sheet, which is covered by the galvanization process, with a protective layer of Zinc (Zinc). This process creates not only a physical coating, but also a complex electrochemical protection system on the steel surface. The ultimate goal of this technology is to significantly increase the steel resistance to oxidation (rust) and corrosion caused by environmental factors, especially in wet and corrosive atmospheres. This functional superiority has made galvanized sheets an economic and engineered solution for a wide range of applications, from construction to home appliances.



### Process and mechanism of galvanic protection

A deep understanding of the benefits of galvanized sheet requires understanding the production process and the scientific principles governing it. The most common method is the ** hot-dip galvanizing method , in which steel sheets are immersed in a melt metal (at an approximate temperature of 450 ° C) after the surface preparation process (including fattyness, acidification and flaxing).

During this process, a metallurgical reaction occurs between iron and zinc, which results in the formation of intermented alloy layers on the steel surface. These layers from the outside include gamma, delta and zeta layers, which are extremely hard and attached to the steel surface and are eventually covered with a pure layer (ETA layer). This multilayer structure is the secret of extraordinary adhesion and high strength of galvanized coating to mechanical damage.

The mechanism of conservation sheet protection is dual and clever:

1. ** Barrier Protection: ** Zinc layer fully isolated from contact with oxygen and moisture and acts as a physical barrier.
2. ** Sacrificial/Cathodic Protection: ** This unique feature is the main advantage of galvanization. Zinc metal is more active than iron. That is to say, if the coating is scratched or damaged and the underlying steel is exposed to the environment, the zinc acts as "sacrificed anode" and is eaten instead of iron. This property ensures that even in damaged points, base steel is protected from rust.



### Technical specifications and production standards

Galvanized sheets are produced and supplied based on a set of technical parameters that are essential for the correct use:

Standard width: ** These sheets are mainly manufactured in two industrial standard width:
** 1000 mm width (1 m): ** which is called "short width".
** ** Width of 1250 mm (1.25 m): ** which is called "long width".
** Supply Form: ** Products are marketed in two main ways:
** Roll (Coil): ** for use in continuous production lines and forming workshops.

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Sepahan Insulation

  • Gold Company
  • Company registration date: -
  • Number of staff: 1-10 Person
  • Company activities: Agents, Distributor and Wholesaler, Shop
  • Place: Iran, Province Esfahan
  • In the field of: آهن آلات و صنایع فلزی
  • Company Type: Private

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Contact Info: Sepahan Insulation
Companyسپاهان عایق
Tel +98 31-3×××6619 callMake Call
Website https://sepahanaiegh.ir
CountryIran
ProvinceEsfahan
Addressاصفهان ،خیابان زینبیه،چهار راه عاشق اصفهانی،عاشق اصفهانی غربی بعد از پل عابر پیاده سپاهان عایق پلاک 204
Postal code8197793816
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