Hot Dip Galvanized Steel Pipe

Manufacturing process

The manufacturing of galvanized pipe mainly includes the following steps:

Steel cutting: Cut the steel into the required length.

Steel pipe pretreatment: Clean the surface of the steel pipe to remove impurities such as grease and rust.

Acid pickling: Soak the steel pipe in acidic liquid to remove the oxide layer, rust and corrosion on the surface.

Galvanizing treatment:

Hot-dip galvanizing: The steel pipe is immersed in the galvanizing liquid after high temperature heating to form a thick zinc layer with excellent anti-corrosion performance and durability.

Electrogalvanizing: The steel pipe is used as the cathode to deposit a thin zinc layer on the surface through electrolysis, which has good anti-corrosion performance and decorative properties.

Inspection and warehousing: After galvanizing, the steel pipe is inspected for quality and qualified steel pipes are put into storage.

Types

Galvanized pipes are mainly divided into two types:

Hot-dip galvanized pipe: thick coating, uniform coating, strong adhesion and long service life.

Electrogalvanized pipe: The coating is thinner, but it also has good anti-corrosion and decorative properties.

Features

Anti-corrosion performance: The presence of the zinc layer isolates the steel pipe from the outside world, effectively preventing oxidation and corrosion of the steel pipe.

Durability: Even in harsh environments such as humidity, high temperature, and low temperature, the galvanized pipe can maintain its original performance and appearance.

Hard texture: Able to withstand a certain amount of pressure.

Not easy to wear: The surface is smooth and not easy to accumulate scale.

Uses

Galvanized pipes are widely used in many fields due to their excellent performance:

Construction field: used for pipeline systems such as water supply, drainage, and heating, as well as internal and external structural supports of buildings, bridges, street lamp poles, road guardrails, etc.

Municipal field: Widely used in pipeline systems such as sewage, rainwater, and tap water.

Industrial field: In the petroleum, chemical, and electric power industries, it is used for fluid delivery pipelines, such as liquids and gases.

Others: Also used in shipbuilding, agricultural irrigation systems, drinking water systems, and other fields.