What is the difference between hot dip galvanizing and electroplating? What is the difference between hot dip galvanizing and electroplating?

Difference between hot dip galvanizing and electroplating

1, the principle is different

Galvanizing, also known as cold galvanizing, is to attach zinc to the surface of steel strip by electrochemical method.

Hot dip galvanizing is to form a layer of intermetallic compound on the surface of raw materials.

2. Different production costs

The production cost of hot galvanizing is lower than that of electro-galvanizing. Electroplating can't be mass-produced and the yield is low.

Hot dip plating has low cost and can be produced in large quantities. It is more suitable for galvanized wire and pipe of guardrail net and isolation grid, and is suitable for the direction of big market.

3, the appearance is different

The galvanized layer is relatively thin, and the galvanized layer mainly adheres to the surface for a long time and is easy to fall off, and the galvanized surface is smooth and bright.

The zinc layer of hot dip galvanizing is thick, and the zinc layer of hot dip galvanizing is penetrating, so the service time is longer than that of electro-galvanizing. Hot dip galvanizing has rough surface and dark color.

4, the scope of application is different

Galvanizing is mainly used for small parts, and hot galvanizing is generally used for power equipment and components, and is suitable for large parts. Hot dip galvanizing can galvanize both the inner and outer walls of steel pipes, while electro-galvanized steel pipes only galvanize the outer walls.