Home > Exhibition > Content
What is the Electro-Galvanized
- Jan 25, 2018 -

Electro-galvanized, also known as cold galvanized in the industry, is the use of electrolysis in the workpiece surface to form a uniform, dense, well-bonded metal or alloy deposition process.Compared with other metals, zinc is a relatively cheap and easy to be plated metal, is a low value anti-corrosion plating, is widely used to protect the steel parts, especially to prevent atmospheric corrosion and used for decoration. Plating technology include slot plating (or hanging plating), barrel plating (for small parts), blue plating, automatic plating and continuous plating (for wire, strip). Such as US type wire rope clip for sale,Scaffolding screw parapet, Turnbuckle, Thimble, Chain g70, Hook are made of zinc electroplating process to extend the life of the product.

Taking galvanized iron alloy as an example, the technological process is as follows: Chemical oil Removal→ Hot water washing → Washing →Strong corrosion→ Hot water washing → Washing → Strong corrosion → Washing → Galvanized iron alloy → Washing  → Light → Passivation→ Washing → Drying.

The purpose of electro-galvanizing is to prevent corrosion of steel objects, improve the corrosion resistance and service life of the steel, and at the same time, add decorative appearance to the product. The steel will be weathered, water or soil corroded over time. Steel corroded annually accounts for almost one-tenth of the total amount of steel in the country. Therefore, in order to protect the service life of steel or its components, electroplating zinc is generally used to process the steel.

Because zinc does not change easily in dry air and produces a basic zinc carbonate film in a wet environment, the film protects the internal parts from corrosion even if the zinc layer is damaged by some factor Case, zinc and steel after a period will form a micro-cell combination, leaving the steel substrate to become cathodic protection. Galvanization has the following characteristics:

1.Good corrosion resistance, combined with meticulous uniformity,not easy to be corrosive gas or liquid into the interior. 

2.Because the zinc layer is more pure, no matter under the acid or alkali environment is not easy to corrode and long-term effective protection of steel.

3, After the formation of a variety of chromogenic passivation, according to the customer favorite  selection,elegant and beautiful galvanized, with decorative.

4,zinc coating has good ductility, in a variety of bending, handling impact will not easily fall.