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What are the welding methods of steel pipes?

Release time:

2024-05-31

There are also some specific welding techniques and methods, such as butt welding and socket welding, which are suitable for specific welding needs and scenarios. For the welding of thin square tubes, some specific techniques need to be mastered, such as selecting the appropriate current and voltage, using the appropriate welding speed and angle, adopting the segmented welding method, using the anti-deformation method, and paying attention to the finishing of the weld, etc., to ensure the welding quality and reduce deformation.

The welding methods of steel pipes mainly include the following:

Manual arc welding: The high temperature generated by the arc is used to melt the welding rod and the steel pipe, and then cool and solidify to form a weld. This method has simple equipment and flexible operation, and is suitable for welding steel pipes in various positions and of different thicknesses.
Gas shielded welding: Inert gas (such as argon) or active gas (such as carbon dioxide) is used to protect the welding area to prevent air intrusion and oxidation. This method has good welding quality and high efficiency, and is suitable for welding medium and thin-walled steel pipes.
Submerged arc welding: A method of igniting an arc under the flux layer for welding. This method has fast welding speed and high efficiency, but is generally only suitable for welding steel pipes in horizontal position or with small inclination.
Tungsten inert gas shielded welding, flux-cored arc welding, arc welding, submerged arc welding, downward welding and other methods are also common methods for welding steel pipes. These methods require alignment angles during welding to ensure welding quality.
In addition, there are some specific welding techniques and methods, such as butt welding and socket welding, which are suitable for specific welding needs and scenarios. For the welding of thin square tubes, some specific skills need to be mastered, such as choosing the appropriate current and voltage, using the appropriate welding speed and angle, adopting the segmented welding method, using the anti-deformation method, and paying attention to the finishing treatment of the weld, etc., to ensure the welding quality and reduce deformation.

The main difference between steel coils and steel strips is their width and application areas. Steel coils are usually wider and suitable for applications that require wider steel, while steel strips are narrow and long, suitable for applications that require narrow and long steel.