Continuous arc method and arc extinguishing method, butt welding flange continuous arc method is the actual operation method to terminate short arc welding after continuous and standard shaking of the welding wire;
The arc extinguishing method of the butt welding flange is a method in which the electric sol is used to extinguish the arc at a certain time during machine welding, and then ignited and then extinguished, and then the molten pool metal materials are superimposed and formed.
The comparison of the two butt welding flange arc extinguishing method can ensure that the machine welding has excellent forming, and can reasonably control the welding slack and the concave wall. The disadvantage is that the whole welding process is in a continuous condition, which is very easy to show pores, Welding bumps and other shortcomings, butt-welding flange butt-welding flange continuous arc method can make the whole welding process continuous and can reasonably ensure the welding quality, but the actual operation method may cause welding slack and concave surface.
Analogous to the two welding methods, even argon arc welding is more worthy of implementation. In some countries with prosperous industrial production, such as France, the United Kingdom, Japan, etc., consumers are asking to choose this kind of welding method. The welding method of butt welding flange is: the welding nozzle and the wall thickness welding seam are persistently spaced, and the left hand is used. The thumb and ring finger grasp the welder, and the other 3 fingers sway up and down against the wall thickness as a support point (or immediately hang in the air to terminate the transport).
But when the wall thickness is large, this kind of method is not easy to form excellent maintenance and welding forming. In addition, the tungsten electrode is too long to extend, which is very easy to produce the disadvantage of tungsten clamping. The sloshing technique welding method should be used. The advantage of the butt welding flange sloshing welding technique is: because the gun nozzle of the welding machine is immediately pressed in the weld and swayed, the distance between the gun nozzle and the liquid pool is relatively close, which can ensure sufficient steam for maintenance. Maintain the molten pool.
