Flux Cored Welding Wire in all positions, the continuity of the process for automated production.
The main advantages of the process:
(1) good quality and welding defects are usually produced in the welded joints. Equal to the diameter of the steel hand-welded under the welding head and the first few numbers more than semi-automatic, semi-automatic welding with reduced probability of defect generation. Usually the application of NR204, NR207 metal wire is a low hydrogen, while the more traditional manual welding using cellulose type electrode. It can be seen, semi-automatic welding can reduce the hydrogen content in the Welding Wire . Meanwhile, the semi-automatic welding heat input is high, may reduce the weld cooling rate, hydrogen escape, and help reduce and prevent cold cracking. Table 3 flux-cored wire from under the protection of semi-automatic reference to the welding process parameters
(2) high efficiency flux cored welding process into the continuous intermittent mode of production. Semi-automatic welding deposited a large amount of less than the manual welding bead, melting faster than hand-down welding of cellulose increased by 15% to 20%. Thin welding slag, slag easily, reducing the time between layers slag.
(3) integrated low cost semi-automatic welding equipment is versatile, can be used for semi-automatic welding, arc welding can also be used for welding or other welding methods.
Thickness of 8.7mm steel to weld an example; manual welding welder to complete at least 3 groups, only Group 2 semi-automatic welding welders, welders at least 2 can be reduced, but also a corresponding reduction in the number of welding machine and the number of auxiliary tooling. At the same time. Effective utilization of high flux-cored wire, welding
groove small, saving the amount of filler metal used, and improve the welding speed, integrated cost is only half the hand arc.

Keywords: mig welding wires