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How is Hot Dipped Galvanised Wire – Hot Dipped (GI) Wire made?

In Hot Dipped Galvanizing process, single uncoated steel wire is passed through molten zinc bath. The wires are passed through molten zinc after going through a rigorous 7-step caustic cleaning process. The cleaning process ensures better adhesion and bonding. The wire are then cooled and a coating of zinc is formed.

Hot dip galvanizing provides much better corrosion resistance than electro galvanization because the zinc coating is typically 5 to 10 times thicker. For outdoor or caustic applications where corrosion-resistance is required, hot dip galvanized wire is the clear choice.

The thickness of hot dip galvanized zinc layer can achieved more than 50 microns, the maximum can reach 100 microns.
Hot-dip galvanizing is a chemical treatment, is the electro-chemical reaction. Cold galvanizing is the physical address, just brush the surface layer of zinc, the zinc layer is easy to fall off. Construction in the use of hot dip galvanizing.

Hot dip galvanized is the ingot melted at high temperatures, a number of supplementary material in place, then dipped galvanized metal structure slot, the metal component on a layer of zinc coating . The advantages of hot-dip galvanizing corrosion of his ability, adhesion and hardness of zinc coating is better.

Advantages of Hot Dip Galvanized Wire
• Longer life span compared to electro galvanized
• Process creates an iron-zinc alloy layer on the steel surface and a pure zinc coating on the outer surface. The alloy offers higher strength and resistance to typical abrasions.
• Zinc coating thickness can be up to 10 times thicker than electro galvanized coating

Disadvantages of Hot Dip Galvanized Wire
•  expensive than electro galvanized wire
• Thickness of Zinc can be inconsistent across the product

Post time: Jun-21-2021