Friends, all welcome.
Today I want to show you 2 simple ways to weld without burning through the thin profile pipes, which will be useful to those who make the first steps in the manual arc welding. After welding of shaped pipes it occupies today a large part in all welding work at home.
Before starting to weld shaped pipes, you need a little practice on a piece of the same pipe. Take a piece of waste, and make gashes grinder thin disk, the layout will be gashes butt joint with a small gap.
Then, in one of the gashes we need to adjust the welding current. We set up so that it was minimal, as soon as the electrode is no longer stick and start the arc more stable mene burn everything enough. Otherwise, the newcomer to a serious current will be very difficult to weld without multiple burn-through.
Then, on the second gashes we take, and simply are conducting electrode along until the moment of burning, and so do a few times. This operation we have made in order to determine the length of the seam in this welding power mode until it receives burnout.
Now, knowing the length of the seam without burn-through, we just put the next gash tack at a distance slightly less than the length of the shovchik. This tack will not give burn-through form, because in place of potholders metal thickness will be even greater thickness of the pipe, so it can safely lead electrode along the seam just remember repel slag from tack before welding.
Brewed the propyl with tack, this method is simple and effective, let the beauty of the seam until you are concerned, the main thing to make a seam without burn-through, or brew their newcomer is sheer confusion.
Such as welded seams can be a simple point-lit arch, set point, broke off the arc. Then we put the next point. Only here you need to put the point as it were, with an overlap of about half of the previous point, in the photo is shown schematically. It is also a way to work, the likelihood of burning and there will be small.
Propyl brewed following points.
There is one simple and working version. We know the approximate length of the seam to the moment when we get burn-through. Now simply impose a little shorter length joint first cutting, then at the end, in the middle of, well, how much will be the total length of the seam, and roughly divide it into these small areas.
Then repel shovchik from slag, and also short welds, we connect them. We get a common seal, which we did without burn-through-the main enemy for the beginner in welding shaped tube.
Thus, a little fulfilled these simple methods on the training piece of shaped tube, we are braver will use them already in the main pipes in welding their designs. Do not be lazy, do these simple manipulations, because they will leave much less time than it will zaplavlyat numerous burn marks.
But it is better to see once, let's see a video where I show these details just need ways to help is just beginning to be welded profile pipes.
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