What Are The Cooling Methods After Welding Robot Molten Pool Temperature？

During the welding process of the welding robot, when the angle between the electrode and the welding direction is 90 degrees, the arc is concentrated and the temperature of the molten pool is high; while the angle is small, the arc is scattered and the temperature of the molten pool is low. For example, when performing 12mm flat welding to seal the bottom layer, the angle of the electrode should be controlled at 50-70 degrees to reduce the temperature of the molten pool and avoid welding bumps or lifting on the back.

When the welding robot performs welding operations, the temperature of the molten pool is related to many factors, including the angle of the electrode, welding time, diameter of the electrode, welding method and other factors. Therefore, once the temperature of the molten pool is found to be too high, it is necessary to start from these aspects. Cool down.

Secondly, it is necessary to strictly control the arc burning time of the welding robot system. The frequency of arc breaking and the arc burning time directly affect the temperature of the molten pool. Due to the thinner tube wall, the arc heat tolerance is limited. If the arc breaking frequency is slowed down to reduce the molten pool temperature The temperature is easy to produce shrinkage cavity, so the arc burning time can only be used to control the temperature of the molten pool, so as to avoid the super high welding seam inside the pipe or the generation of welding burr.

Under normal circumstances, the welding robot is required to select the welding current and the diameter of the electrode according to the spatial position of the weld and the welding level. When starting welding, the welding current and electrode diameter selected are larger, and the vertical and horizontal positions are smaller. Only in this way can it be easier to control the temperature of the molten pool and make the weld shape.

According to past experience, when the welding robot uses a circular strip, the temperature of the molten pool is higher than that of the crescent-shaped strip, and the temperature of the crescent-shaped strip is higher than that of the zigzag-shaped strip, so try to use a zigzag-shaped strip, and The temperature of the molten pool is effectively controlled by the amplitude of the swing and the pause on both sides of the groove.