The causes of common welding defects in CO2 gas welding and the prevention methods
The reasons causing ① Insufficient CO2 gas flow (excess space) ② Air is mixed into COz ③ The protective gas is blown away by the wind ④ The nozzle is blocked by splashing particles ⑤ Gas purity does not meet the requirements ⑥ The welding part is too dirty and dirty paint ⑦ the distance…
