Galvanized wire

Hot galvanizing

Hot dip galvanizing refers to dip plating in heated molten zinc solution. The production speed is fast, and the coating thickness is uneven. The minimum thickness allowed in the market is 45 microns, and the maximum is more than 300 microns. It is dark in color, consumes more zinc metal, forms an infiltration layer with the base metal, and has good corrosion resistance. The hot-dip galvanizing in outdoor environment can last for decades.

Application scope of hot galvanizing:

As the obtained coating is thicker, hot dip galvanizing has better protection performance than electro galvanizing, so it is an important protective coating for iron and steel products in harsh working environment. Hot dip galvanized products are widely used in chemical equipment, petroleum processing, marine exploration, metal structure, power transmission, shipbuilding and other industries. They have been widely used in agricultural fields such as pesticide spraying, greenhouse, and construction industries such as water and gas transmission, wire casing, scaffolding, bridges, highway guardrails, etc.

Cold galvanizing

Cold galvanizing (galvanization) is to make zinc gradually plated on the metal surface through unidirectional current in the electroplating tank. The production speed is slow, the coating is uniform, and the thickness is thin, usually only 3-15 microns. The appearance is bright, and the corrosion resistance is poor. Generally, it will rust in a few months.

Compared with hot galvanizing, the production cost of electro galvanizing is lower.

Difference between cold galvanizing and hot galvanizing:

The difference between cold galvanizing and hot galvanizing is that the zinc content is different, which can be identified from the color. The color of cold galvanizing is shiny, silver white and yellow. Hot dip galvanized shiny white.