Containers, as a representative product of modern logistics, play an indispensable role in global cargo transportation due to their efficient and convenient characteristics. So, how do containers achieve their strength and reliability through welding technology during the manufacturing process? Next, we will explore the commonly used welding methods for containers.
Manual arc welding: This is the most basic welding method, with simple equipment and flexible operation. Although it is suitable for welding in any spatial position, especially for the treatment of short welds, its production efficiency is relatively low, labor intensity is high, and welding quality is closely related to the technical level and mental state of the welder, so it is less applied in actual production.
Automatic or semi-automatic submerged arc welding (arc welding): Submerged arc welding is a welding method in which the arc burns below the flux layer. By controlling the feeding of welding wires and the movement of welding direction through specialized institutions, this automatic submerged arc welding has the advantages of high productivity, stable weld quality, and small deformation of welded parts. Semi automatic submerged arc welding requires worker operation, but the welding quality is also stable. Due to its excellent welding effect on thick plates and high production efficiency, it has been widely used in container manufacturing.
Gas shielded welding: Using carbon dioxide or inert gas as a protective medium, this welding method can ensure the stability of the welding process. Due to its characteristics of concentrated heat, fast welding speed, and high weld strength, gas shielded welding is not only suitable for all position welding, but also particularly suitable for environments with high winds. Meanwhile, it is also widely used in the manufacturing of containers.
Resistance welding: Welding is carried out using the heat generated by the surface resistance of the contact point through the current. Resistance welding is particularly effective for welding with a stack thickness of less than 12mm. However, due to its limitation on component thickness, this welding method is not commonly used in container manufacturing.
In summary, manual arc welding, automatic submerged arc welding, gas shielded welding, and resistance welding are mainly used in the manufacturing process of containers. Each welding method has its unique advantages and application scenarios, and the high quality and reliability of containers are precisely derived from these advanced welding technologies and processes.
