First of all, the hand should be steady, that is, the hand should have the power to control the welding torch. Breathe carefully. When breathing, the chest will expand and contract, which will drive the arm to move and make the welding unstable. Practice breathing, keep your fingers in a certain posture, breathe carefully, control your hands or fingers in a straight line with your will, and find the feeling of breathing.

A rhythmic swing. When swinging, you should stay at the break point for 0.5 seconds, and the straight line segment should be fast. When exercising the sense of rhythm, you can shout slogans at 12- 12- 12, and control the rhythm according to the slogans.

Matters needing attention in secondary protective welding

Effective windproof, rainproof and safety measures should be taken before welding. When the wind speed is greater than 2m/s, effective wind protection measures such as wind deflector must be used. When there is water around the joint or the joint is wet, welding operation can only be carried out after the joint is dried. Stop welding when the weather is bad. Before construction, the welder must carry necessary tools such as sharp hammer, wire brush and flat shovel, and wear labor protection articles.

Nozzle must be cleaned frequently for splashes and other sundries. If the conductive nozzle is damaged, it must be replaced. Avoid excessive bending of the torch hose during welding. Welding parameters are selected according to different welding positions, different welding wire specifications, different plate thickness and gap polarity.