Friends all welcome. As always, today will be another useful article for anyone who has decided to learn on their own manual arc welding. Subject undoubtedly important and nuzhnaya- How to join and welded round tubes
The first step in this process is necessary to prepare a guide for the flat pieces of pipe connections. The ideal tool for this will be all that is shaped like a boat, of course this area, but since desired length corner I was not there, then had kulibnichat and tinkering corner of two pieces of profile pipes!
Just I took two proftruby and picked up to the surface of the metal goat at an angle, turned essentially area.
I've got two pieces of pipe 45 has seen a lot in my time-I brought them out and asked CHERMET dock-pipe will be needed to extend the bridge in the river, but not the point.
Begin to prepare pieces of pipe to the dock, and after we exactly cut ends should be chamfered-grinder to grind the pipe edge angle, groove turned to deep penetration and penetration of a molten metal as deeply as possible, because the connection will be much stronger. And place around the ends of the pipes also need to clean up the rust and dirt.
Put the pipe in our profeletrubny area and make a small gap between them, a couple of millimeters gap necessarily do, lazy dilute tube by a few millimeters and the compound will be less durable.
We do four pot holders and do not forget these tacks to fight off the slag.
After tack visually eye estimation shoot along the tube has one piece, albeit on a tack, twisting it in our corner. Here we identify the minimum curvature of the connection, if suddenly it was, that while the connection is not as strong, then we take a hammer and beat on the backs of curvature, leading to a smooth state.
Now we start to cook just need to light the electrode is not in the tack-tack on the impossible, somehow tell you why. I personally boil first seam about one third of the circumference of the pipe, such technology brought for himself by trial and error if the first seam will be equal to half a circle, then it is likely that the tube will pull to the side of first seam.
Then, boil the remaining two-thirds, starting with a small overlap welding to the first joint. Said first, said second seams perform below upwards and towards each other-not sploshnyakom, lit and chased.
That's all we docked pipe, it turned four meters of the two pieces of 2.7 and 1.3 m, such pipes were few, and all these 4 meter stacked pipes go now hold the bridge on the river Bityug Voronezh region which flows into the Don, who can hear, but can anyone been-great river!