Flat welding, also known as butt welding, welding, welding parts should be equal to the thickness of the gap.It is characterized by no outflow of molten metal in the molten pool, good permeability, easy operation, and is the most common form of welding.

In flat welding, the droplet can naturally fall to the pool depending on its dead weight.The crystallizing position of the molten pool is horizontal, the crystallizing condition is good, the weld seam is beautiful, it is the most suitable and the easiest position to operate among all welding positions, and the molten metal in the molten pool is not easy to lose.Production, can use flat welding should be as far as possible with flat welding, can not use flat welding should use welding positioner and welding roller frame (welding rotary tire) try to turn to the flat welding position and then welding, especially the rotating pipe and ring joint.Some welding methods (such as submerged arc welding) can only work smoothly in the flat welding position.