Submerged arc welding is a commonly used welding method, and its operation requires certain processes and skills to ensure welding quality. Among them, the welding wire process is the key to controlling the quality of the weld. The following will introduce how to control the quality of welds by controlling the submerged arc welding wire process and techniques.

1. Choose the appropriate welding wire. Selecting the appropriate welding wire is the basis for ensuring weld quality. Generally speaking, the selection of welding wire should be determined according to the type and thickness of the material to be welded. Commonly used welding wires include gas shielded welding wire, flux-cored welding wire and non-gas shielded welding wire. When selecting welding wire, factors such as the welding environment, welding position and welding requirements should also be considered.

2. Control the welding current and voltage. Correct control of welding current and voltage is the key to ensuring weld quality. Generally speaking, if the welding current is too large, it will easily lead to deep penetration, and if the welding current is too small, the welding will not be in place. If the welding voltage is too high, it will easily cause spatter, and if the welding voltage is too low, it will affect the quality of the weld. Therefore, when welding, the welding current and voltage should be reasonably adjusted according to factors such as the type and thickness of the material to be welded.

3. Control the welding speed. The speed of welding directly affects the quality of the weld. Generally speaking, too fast a welding speed can easily cause problems such as welding slag residue, pores, and loose welds, while too slow a welding speed can easily cause problems such as welding deformation and uneven weld width. Therefore, when welding, the welding speed must be controlled to ensure the quality and stability of the weld.

In short, controlling the welding wire process and techniques is the key to ensuring the quality of the weld. Under correct operation, better welding results can be obtained. Therefore, when performing submerged arc welding, you must pay attention to the above points and do a good job in weld quality control to ensure welding quality.