Experts in electric welding, gas cutting and two-way welding give me some advice.

1. If the current is large, the undercut will be weak.

2. Look at the arc. The CO2 current adjustment should be consistent with the current and voltage, for example, the voltage of 25 should also correspond to it. If the voltage is slightly larger, the welding will be smooth and beautiful without splashing, but it is easy to undercut. Before the leakage, it should be that the molten pool (where the molten iron melts) is not full. Even if it doesn't bulge, it will sink a little. Then immediately stop turning off the automatic switch and switch to manual. If the spot welding is full, the hand will still leak if it is slow. I suggest you try to find a piece of waste before welding. Others don't understand. The mouth is clumsy ...

3. It's very simple. How about punching a little deeper? Why don't you sharpen the head of the ground gauge? Just give it a little strength when you cut it.

4. I dare not say ... Haha, sometimes the pressure displayed on the watch is 1. Actually, after 7 8, I usually slap it lightly on the back of the watch with my hand, which is a problem. < P > I think that's enough. I'm a riveter, but a welder is not very professional. Haha < P All the good welders in our Dalian Shipyard are fed by covered electrode. You just need to practice more and work harder to figure out what this is. Haha, all-position welding. I can climb the slope with an inclined face. What's the matter?

Come on, brother! !