How Galvanized Steel Wire Mesh is Made?


How Galvanized Steel Wire Mesh is Made?

Posted on February 02, 2023

In the last article, we discussed the advantages and disadvantages of galvanized steel wire mesh. We also discussed various applications of galvanized steel wire mesh. In this article, let us discuss how galvanized steel wire mesh is made.

The process of galvanizing starts with preparing the stainless steel for the treatment. The stainless steel is cleaned with a sodium hydroxide solution to remove dirt, debris, oil, and other residues. An acidic solution is then used to remove any mill scale, rust, contaminants, and other unwanted materials from the surface of the steel.

Once it is cleaned, a flux coating is applied to the steel. This solution helps protect the metal from oxidation and helps the zinc adhere better when it comes time for galvanizing. After that, a few different methods may be used for galvanizing depending on the type of galvanizing desired.

Hot Dipping

Here’s a quick overview of the process:

  1. The stainless steel mesh is first prepared by cleaning it with wire brushes or sandpaper, then used to remove any mill scale, rust, contaminants, and other surface impurities.
  2. A zinc ammonium chloride cleaning agent (also known as a “flux”) is then applied to the steel surface. This helps bond the zinc and steel together better.
  3. The metal is then dipped into a vat of molten zinc (which has been liquified at an extremely high temperature).
  4. The steel remains in the vat until it reaches the same temperature as the hot zinc. This is what’s called “hot-dipping.” The process of heat transfer and zinc coat
  5. The steel is then removed from the vat and allowed to cool. A strong bond forms between the steel and the zinc as it cools. This creates a zinc-steel alloy, which gives galvanized wire steel mesh its superior strength and corrosion-resistance.
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  1. The second way to galvanize is electro-galvanizing, which involves coating the steel with a liquid solution of zinc salts and other substances. This solution is then electroplated onto the stainless steel.
  2. As the solvent evaporates, only the zinc remains on the metal surface, forming an incredibly strong bond that gives the wire mesh even more durability.
  3. 8. Finally, any excess zinc is removed from the galvanized product and can be woven into a mesh or cut into whatever shapes are required for its application.

The finished result irrespective of the process is a galvanized stainless steel mesh with unparalleled strength, ductility, and resilience – perfect for a variety of applications in industrial and commercial settings.

Spangle Formation

The coating on galvanized steel also forms a unique pattern known as “spangle.” This is caused by the zinc’s reaction to the steel when it is hot-dipped or electroplated, resulting in a crystallized pattern of tiny spots across the metal. Depending on the application and aesthetic preferences, spangle patterns can be customized and altered to give the finished product an individualized look.

Regular Maintenance

Despite being incredibly durable, galvanized steel does require regular maintenance to ensure it remains in good condition and can resist corrosion for a long time. This includes regularly cleaning the metal surface with hot water and a wire brush and periodically checking for any signs of rust or corrosion.

By following these simple maintenance tips, galvanized steel wire mesh can last for many years and provide reliable protection against the elements. At Systematic Group we manufacture our galvanized steel wire mesh with the utmost care and attention to detail, ensuring our customers get only the best quality products. Contact us today for more information on our wide range of galvanized steel products.

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