What if there are bubbles in argon arc welding? And if there are bubbles, welding is not good. It is made of iron.

1. There are impurities in the weld area, and the surface treatment is not good. If there is oil or rust, the surface should be polished.

2. The flow of protective gas is too large or too small, usually too small.

Generally not more than 10. It's better not to be less than 2, which depends on the thickness of the product you are welding and the speed at which you adjust the current.

There is no gas, or your protective gas pipeline is broken, or there is a leak in that place.

Your welding wire may be useless. Yes, you must have a high-density welding wire. Iron is usually carbon steel.

Just press the above check, it must be like this. Of course, if the hand shakes badly during welding, it is not without bubbles.