Classification and features of galvanized square tube

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Galvanized square tube is a hollow square cross-section steel tube with a square cross-section shape and size made from hot-rolled or cold-rolled galvanized strip steel or galvanized coil plate, which is formed by cold bending and then high-frequency welding. , or galvanized square

Classification of galvanized square tubes:

is a hollow square cross-section steel tube with a square cross-section shape and size made from hot-rolled or cold-rolled galvanized strip steel or galvanized coil plate, which is formed by cold bending and then high-frequency welding. , or galvanized square rectangular tubes made by hot-dip galvanizing the pre-made cold-formed hollow steel tubes.

Galvanized square tubes are divided into hot-dip galvanized square tubes and cold-dip galvanized square tubes in terms of production technology. It is precisely because of the different processing of these two galvanized square tubes that they have many different physical and chemical properties. , in general, they have many differences in strength, toughness and mechanical properties.

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1. Hot-dip galvanized square tube.

Hot-dip galvanized square tube: It is a square tube made by welding a steel plate or steel strip after being curled and formed. On the basis of this galvanized square tube, the square tube is placed in a hot-dip galvanized pool and undergoes a series of A kind of square tube formed after chemical reaction. The production process of hot-dip galvanized square tube is relatively simple, and the production efficiency is very high. There are many varieties and specifications. This kind of square tube requires very little equipment and funds, and is suitable for small Galvanized square pipes are produced by manufacturers, but in terms of strength, the strength of this steel pipe is far lower than that of seamless square pipes.

2. Cold galvanized square tube.

Cold-dip galvanized square tubes use the principle of cold galvanizing on the square tubes used to make the square tubes anti-corrosive. Different from hot-dip galvanizing, cold-dip galvanized paint mainly uses electrochemical principles for anti-corrosion, so it must be ensured Full contact between zinc powder and steel produces an electrode potential difference, so surface treatment of steel is very important.

Features of galvanized square tube:

Galvanizing makes it more protective and resistant to corrosion. The entire structure is composed of zinc to form a dense quaternary crystal. This crystal forms a barrier on the steel plate, thus effectively preventing corrosion factors from penetrating. The corrosion resistance comes from the zinc. The barrier layer has a strong protective function. When zinc is used for sacrificial protection on trimmed edges, scratches, and abraded parts of the coating, the zinc forms an insoluble oxide layer and exerts a barrier protection function.

Galvanized square tubes are very common in our lives and are widely used in many fields, such as power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, etc. Galvanized square pipe has a stronger protective effect and has excellent corrosion resistance. There are two types of galvanized square tubes, cold-dip galvanized square tubes and hot-dip galvanized square tubes. The functions of the two galvanized square tubes are different.

Cold-dip galvanized square tubes use the principle of cold galvanizing on the square tubes used to make the square tubes anti-corrosive. Different from hot-dip galvanizing, cold-dip galvanized paint mainly uses electrochemical principles for anti-corrosion, so it must be ensured Full contact between zinc powder and steel produces an electrode potential difference, so surface treatment of steel is very important.Galvanizing makes it more protective and resistant to corrosion. The entire structure is composed of zinc to form a dense quaternary crystal. This crystal forms a barrier on the steel plate, thus effectively preventing corrosion factors from penetrating. The corrosion resistance comes from the zinc. The barrier layer has a strong protective function. When zinc is used for sacrificial protection on trimmed edges, scratches, and abraded parts of the coating, the zinc forms an insoluble oxide layer and exerts a barrier protection function.Galvanized square tubes are very common in our lives and are widely used in many fields, such as power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, etc. Galvanized square pipe has a stronger protective effect and has excellent corrosion resistance. There are two types of galvanized square tubes, cold-dip galvanized square tubes and hot-dip galvanized square tubes. The functions of the two galvanized square tubes are different.

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