How to use oxyacetylene welding tools?

1. Ignition: When igniting, first open the acetylene valve, ignite the acetylene, and immediately open the oxygen control valve.

2. Adjust the flame: the first flame is carbonized flame, then gradually open the oxygen valve and adjust it to neutral flame.

3. Welding.

4. flameout: when the workpiece flameout after welding, the acetylene valve should be closed first, and then the oxygen valve should be closed.

Attention should be paid to when welding:

Nozzle inclination: During gas welding, the nozzle and the workpiece should be inclined at a certain angle.

When welding, the metal is first heated to a molten state, and then the welding wire is filled. The welding wire and the surface of the weldment are inclined by 20 ~ 40, and the welding nozzle and the welding wire should cross and swing evenly during welding to avoid welding defects.

In gas welding, the right hand holds the welding torch and the left hand holds the welding wire. At the beginning of welding, the workpiece should be heated and melted as soon as possible to form a molten pool, and the tilt angle of the welding nozzle is 80 ~ 90. ?

During normal welding, the tilt angle of the welding nozzle is generally kept between 40 and 50, and the welding wire is put into the molten pool to melt rhythmically.

When welding to the end of the weld, the tilt angle of the welding nozzle can be reduced to 20.