Friends, I welcome everyone to the channel for self-taught in manual arc welding. Anyone who loves to work with metal at home, in the country, in the garage. Here we provide working tips that you can apply right away.
How does the acquaintance with welding take place? We thought, bought a welding inverter and a mask, necessarily a grinder, at least a small one. Now you need to bribe the welding electrodes, and go ahead, master the metal connection with your own hands.
But with the purchase of welding electrodes, beginners have big problems. There are a great many electrodes, and which are worth buying, and which will be an unnecessary purchase and will make your welding simply unbearable.
In the title to this article, I indicated that there are electrodes for thin and thick metals, but in official welding there is no such concept, experienced and competent people were probably very surprised and outraged.
But for garage-country self-taught self-taught in welding, such a comparison will be better understandable and will be remembered for a long time.
Let's say you need to cook a structure from a profile pipe. Profile pipes have thin walls - for a house they usually take a thickness of 1.5-2 mm. For a beginner, this is a very thin metal, it is better to cook this with frequent separation.
To weld thin metal structures with frequent pull-off, rutile-coated electrodes are required. They are easily re-ignited — tore off, immediately re-ignited, and so on point by point.
For such work, we buy the following brands of electrodes.
ANO-21
MR 3
OK-46
MONOLITH
These are the most common and time-tested electrodes, just the manufacturer is different. The most problem-free are still MONOLITH and OK-46.
But if you need to cook structures made of material with thick walls, angles, channel bars, large-sized profile pipes. For such work, it is better to take electrodes with a basic coating.
Their difference from the rutile coating is that they are cooked with them without tearing, they are lit and the seam is completely seam. The seam from such electrodes itself has higher strength indicators than that of rutile. When welding, slag practically does not interfere, unlike rutile.
Basic electrode grades.
SSSI 13-55
LB-52U
But for home use in terms of price and quality, it is best to take exactly SONI 13-55.
But thick metal can be welded with rutile-coated electrodes with a continuous seam. But their slag is more mobile, fluid and can at some point flood the welding arc if there is no skill in dealing with slag when burning an electrode, especially when you are welding corner joints.
Although it is better to train with both types of electrodes at once, so that there is a skill.
But there is one but. All of the above applies if you have a welding inverter. If this is an old transformer welding machine, then electrodes with a basic coating will not be welded on it. For such welding, they buy only rutile-coated electrodes, as they said before, change electrodes.
And still, conditionally, we take electrodes with rutile and basic coatings of the same diameter and we use such differences in them for our welding purposes.