Hello guys. Welder improved lifetime, if he likes his job, and he likes to experiment. Yet in the beginning, in my opinion, the most important thing - is to learn the welding is good to see and understand where the metal, where the slag. Then, your joints will get a nice and durable.
I want to address this important topic today on the example of the most (people) electrodes - electrodes is rutile. The keynote will not be considered - after all they are used for welding of important structures, and in their garage or house in the area is not much use to apply them (my subjective opinion).
And what is the electrodes with rutile? Yes we all know - OK - 46 ANO - 21 MR - ES, Monolith, and others. About the benefits of these electrodes have a separate article on the channel - look.
See where the slag, and wherein the metal when welding these electrodes is more difficult than welding with basic coating, but there is a sure way. When varish same Anoshko, the color of the metal slag distinguish quite difficult - they are almost the same color. But to be careful and know where to look, at a distance of a few millimeters up to a centimeter from the tip of a burning the electrode can be seen, as I call it, a wave, it is actually very similar to the real small wave of water surface.
If you see this wave, and it is very agile and is constantly in the oscillatory motion, it means that you have seen the border separating slag and metal.
But to see this wave is half the battle, we must also work with it, so it does not become numb to our weld pool and not intoxicated her. What is this interaction? If this wave is rapidly approaching the burning tip of the electrode, it is necessary to drive away - increase the arc, and point to the slag, or by the burning end of the electrode drastically run down at times on this wave. It all depends on your specific situation - well, when you can put the workpiece at an angle, then this wave will disturb less than you, But if of welded circular sleeve and band, in this case, it will have to spend a lot of manipulation of the electrode to slag did not penetrate into the weld pool.
Hope turned to explain in simple words and visual images of this important topic for a beginner in welding. It remains to practice and experiment, and then all turn out.