1, when welding, the heat source will quickly melt the metal at the seam of the weldment and the filler metal added when necessary to form a molten pool, which will expand with the movement of the heat source and form a weld after cooling.

2. Align the covered electrode with the weldment. Then, like striking a match, gently cut the coated electrode on the surface of the weldment to ignite the arc, and then quickly lift the coated electrode a little distance to make it burn stably.

3. Align the end of covered electrode with the weldment, then bend the wrist downward so that covered electrode can touch the weldment slightly, then quickly lift covered electrode for a short distance, and after igniting the arc, put the wrist flat to keep the arc burning stably.

4. When covered electrode moves to the end of the weld bead, make a circular motion with your wrist until the arc pit is filled, and then break the arc.

5. The end of the covered electrode continuously moves in a circle or an oblique circle and continuously moves forward. This operation can make the molten pool exist for a long time, and the metal temperature in the molten pool is high, which is beneficial to the precipitation of oxygen, nitrogen and other gases dissolved in the molten pool and the floating of slag.

6. First, clamp the welding handle on the covered electrode, connect the bottom line to the object to be welded, start the welding machine, and then hold the welding cap in your left hand and the welding cap in your right hand to start the operation.