Submerged arc welding wire and flux production efficiency

The welding process is automatically controlled by operating the push button switches on the control panel. During the welding process, the workpiece is covered with a layer of 30-50mm thick granular flux. The submerged arc welding wire and flux continuously fed form an arc under the flux layer and the weldment. The heat of the arc causes the submerged arc welding wire and flux. The workpiece and flux melt to form a molten metal pool that is isolated from the air. As the welder moves forward automatically, the arc continuously melts the weld metal, submerged arc welding wire and flux and flux in front, and the edge behind the molten pool begins to cool and solidify to form a weld, which then condenses to form a hard slag shell. . As shown in Figure 2-12. Unmelted flux can be recycled.

Submerged arc welding wire and flux and flux have the same effect as welding electrode core and electrode strip for manual arc welding. Different materials should be selected for submerged arc welding wire and flux and flux. For example, H08A submerged arc welding wire and flux are commonly used in welding low carbon steel, and high manganese and high silicon type flux HJ431 is used. Welding power supplies usually use a larger capacity arc welding transformer.

The main advantages of submerged arc automatic welding are: high submerged arc welding of submerged arc welding wire and flux extension length (from the end of the contact tip to the arc end of the submerged arc welding wire and flux length) is much shorter than the manual arc welding electrode, generally At about 50mm, and it is a submerged arc welding wire and flux, it will not cause redness of the electrode of the electrode due to the increase of current, and can use a larger current (5-10 times larger than manual welding). Therefore, the penetration depth is large. , high productivity. For butt welding below 20mm, the groove can be opened without leaving a gap, which reduces the amount of filler metal.