Main advantages and disadvantages of CO2 gas shielded welding machine
Gas shielded welding has been popularized for many years and is widely used in shipbuilding, steel structures, bridges, automobiles, mining machinery and other industries. The welding machine uses ordinary CO2 gas shielded welding machine, and the gas uses CO2 gas or 20% CO2 + 80% Ar as protective gas. The process is very mature.
1. Small splash;
2. Beautiful shape;
3. All-position welding is possible.
The main disadvantages are:
1. The welding wire is susceptible to moisture;
2. When welding with current below 200A, the arc at the end of the welding wire has small balls, which is not conducive to controlling the arc and the molten pool.
3. The melting depth is shallow, the arc is weak, and the penetration is not strong.
Performance characteristics introduction:
1. Small current arc can spray transition;
2. When welding at a low current below 200A, there is no ball when the arc of the welding wire tip burns, so that the molten pool and the arc are well controlled, and the molten pool can be seen clearly;
3. The penetration depth is larger, and the penetration depth of high-speed pulse welding flux cored wire is 50% greater than that of CO2 gas shielded welding flux cored wire;
4. Faster burning speed;
5. When the welding wire is wet, it can be directly welded without baking; the pulse arc stirring is more uniform, and the welding meat has no pits and pores.
6. Beautiful shape;
7. All-position welding is possible.