Friends all welcome. Any work required to spend any time in order to gain the necessary skills to start consciously and adequately perform it. welding of metal is not an exception, quickly got nothing. But all of us where it started and who did not give up gradually cooked better and better.
But where to begin the first steps in the manual arc welding? We must learn to see where the metal and slag which, accustom his hand reflexively perform movements electrode through derzhak to keep short the arc and the weld metal overlay less evenly across the width and height. That is, you have to train in order to get maximum results in a short time. So I want to offer you a simple exercise for the development of initial skills.
To do this we need any piece of sheet metal with a thickness of at least 4 mm, it is possible more will not be worse. Where to get it? Who seeks will always find! In the garage, in the barn, at home, at friends, relatives, Metal-cutting, or in an extreme case in point reception ferrous metal.
This piece of metal is first necessary to thoroughly clean any metal mechanical means. It is necessary to show the pure metal to rust and mud did not prevent our welding.
In textbooks on welding is described that better welding quality is obtained when the weld bead width equal to the diameter of 2.5-3 used electrode, this gives the best fusion core (our metal sheet) and a weld (metal electrode) and the metal seal is obtained most durable. Starting from the correct theory, we try to apply it in practice. Suppose we train electrodes 3 mm, then the formula bead width should preferably be 7.5-9 mm. At our training piece of iron. which is already cleaned of rust mark up a track width of 7-9 mm, the first pencil or prescriber, then do along these lines minimal incisions grinder-just a little nadpilim not venturing. It will be perfectly visible through the mask boundaries of our future seams.
Then we grab our training chemin de fer to any base at an angle (from zero immediately begin to cook on the horizontal plane will be more challenging) .Elektrody take coated with rutile-ELN-21, MR-3C, MONOLITH, and others, these electrodes are easily re-ignited and their good cooking with margin.
With such a welding drafted by paths, and more inclined to be accumulating the initial skills of welding seams, slag hinder us will not, it will flow down. There can be a lot easier to understand how to distinguish between the slag and metal welding metal yellow lake itself under the electrode and slag off a little, it is more dark, mobile, and It is a small wave on our lake metal to be learn to distinguish between the need to look a little further away the tip of the electrode, saw a small wave, then he slag.
Adjust the welding current for our training glands, most importantly did not stick to the electrode and strongly not burned metal, more or less stable burning. And we begin to cast rolls, close to each other do not need, or metal sheet too overheated and the next roll will be more difficult to do. Better at one end, then with Drugova, middle, and so alternate. Cooking and with a margin, and sometimes part of the seam sploshnyakom, experimenting on different need. Another very important so that the mask was clean or new protective glass, so that all processes are clearly distinguishable. Cook, a little moving electrode lengthwise and within the boundaries of our tracks. Also, while exercising to keep optimum arc-arc length is normal, the sound is uniform, starts to get long, crackling sound and will grow, make shorter arc.
And so the seam for seam train, fills are said arm, and while gradually omit our training chemin de fer all horizontal and horizontally. No need to hurry faster than its lower, it is better to draw a little more expensive and boil, simmer and cook. Fill the entire surface of the welding seams, placing them not only within the track, but also imposing the rollers between the seams when everything is zaplavleno can shlifanut and smooth the surface and to make some tracks again. It is also possible and it is necessary to use a second surface of our training glands.