1. When welding, your hands need to be kept steady during welding, and your arms must be clamped to avoid shaking, so that the welding can be even and beautiful.

2. When welding, zigzag and dot shapes are generally used to weld to make the welded seam texture clearer.

3. When welding, the angle between the welding rod and the iron plate should be maintained at 45 degrees, which is conducive to the even distribution of molten iron and the resulting weld will be smooth. Since the molten iron is easy to fall when performing overhead welding, spot welding is required, so that the welding will be stronger.

4. At the end of the circle, when the welding rod moves to the end of the weld, make a circular motion in the arc crater until the arc crater is filled and then the arc is broken.

5. When replacing the welding rod or temporarily stopping the arc to finish, when the welding rod moves to the end of the weld, stop for a moment at the arc crater, slowly raise the arc, and then lead it to the base metal at the edge of the weld. Inside the slope. At this time, the molten pool will gradually shrink, and defects generally will not appear after solidification.

Extended information:

The welding operation is observed and performed under a mask. Due to unclear vision and poor working conditions, ensuring welding quality requires not only relatively skilled operating techniques, but also a high degree of concentration.

Before welding, the surface within 20mm on both sides of the workpiece joint should be cleaned (such as removing rust, oil, and moisture), and the end metal of the electrode core should be exposed to facilitate short-circuit arc ignition. There are two methods of arc ignition: tapping method and scratching method. Among them, the scratching method is easier to master and is suitable for beginners to start the arc operation.

Baidu Encyclopedia-Welding