Definition

Galvanized pipe, also known as galvanized steel pipe, refers to steel pipes that have a layer of zinc coated on the surface of the steel pipe. This process is designed to improve the corrosion resistance of the steel pipe, thereby extending its service life.

Classification

Galvanized pipes are mainly divided into the following two categories according to different manufacturing processes:

Hot-dip galvanized pipes:

Manufacturing process: First, pickle the steel pipe to remove the iron oxide on the surface of the steel pipe, then wash it in an ammonium chloride or zinc chloride aqueous solution tank, and finally send it to the hot dip plating tank. The steel pipe substrate undergoes complex physical and chemical reactions with the molten plating solution to form a corrosion-resistant and tightly structured zinc-iron alloy layer. The alloy layer is integrated with the pure zinc layer and the steel pipe substrate.

Features: Hot-dip galvanized pipes have the advantages of uniform coating, strong adhesion, and long service life. Its coating thickness is large and can provide long-term corrosion protection.

Electro-galvanized pipes (cold-galvanized pipes):

Manufacturing process: A layer of zinc coating is formed on the surface of the steel pipe by electroplating. The zinc layer and the steel pipe substrate are independently layered, the zinc layer is thin, and it is simply attached to the steel pipe substrate.

Features: The electro-galvanized pipe has a small amount of zinc plating and relatively poor corrosion resistance. Because its zinc layer is thin and easy to fall off, its service life is relatively short.

Advantages of Galvanized Steel Pipe

1.Excellent corrosion resistance: The galvanized layer can protect the steel pipe from the erosion of corrosive media and extend the service life of the steel pipe.

2.High strength: The galvanized pipe not only has excellent corrosion resistance, but also retains the high strength characteristics of the steel pipe, and can withstand greater pressure and load.

3.Easy to process and install: The galvanized pipe has good processing performance and weldability, and is easy to cut, bend and weld. At the same time, its installation is simple and quick, which reduces the difficulty and cost of construction.

4.Beautiful: The surface of the galvanized pipe is smooth and bright, and has a certain decorative effect.

5.Economical: Although the initial investment of the galvanized pipe is relatively high, it has high economic efficiency in the long run due to its long service life and low maintenance cost.

Application of Galvanized Steel Pipe

1.Construction field: galvanized pipes are often used in the production of supporting beams, guardrails, handrails and other components in steel structure buildings. Its excellent corrosion resistance and high strength characteristics can meet the long-term stability requirements of building structures.

2.Power field: In the power system, galvanized pipes are often used to make cable trays, power towers and other components. Its good conductivity and corrosion resistance can ensure the safe and stable operation of the power system.

3.Petrochemical field: galvanized pipes are widely used in transmission pipelines, storage tanks, chemical equipment, etc. in the petrochemical industry. Its high temperature resistance, high pressure resistance and corrosion resistance can meet the special requirements of petrochemical facilities.

4.Agricultural field: In the agricultural field, galvanized pipes are often used to make irrigation systems, drainage pipes, etc. Its corrosion resistance and high strength characteristics can adapt to the harsh agricultural environment and ensure the smooth progress of agricultural production.

5.Municipal engineering field: galvanized pipes are often used in municipal engineering to make components such as street light poles and traffic guardrails. Its excellent corrosion resistance and aesthetics can enhance the image of the city and improve the living environment of citizens.

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