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Will analyze this topic today, without which it can not do everything, who picked up a welding derzhak, because this will still have to face sooner or later, as smoothly and properly weld loop.
I show this technology as an example of exhibiting and welding hinges for metal doors.
Welding work loops I always start so the first thing I assort the loop into 2 parts, and a marker to make notes on the part of the loop, which in everyday language is called mother.
I do this in order to work in the process each time to disassemble the loop and not have to look any where part, and without this nothing-else can be welded properly, and the door to turn nesomnaya and remodel later. So this is a very important detail.
We need to loop after welding were strictly in one plane, so doing a temporary guide their profile pipe clamps fixed to the door.
By the way, I always try to push the hinges of the door metal sheet at least 5-10 mm, so proftrubu we pressed on marks made in view of these figures, but start from the edge of the corner of the box door.
Then make a mark distances from the top and bottom of the door leaf, here we will weld the loop, it should be uniform from top and bottom, although there are no standards, but at least 250 follow size mm.
Next, another important detail. Never be welded hinges without play with a box of doors, gates, etc., otherwise they will be strongly about it to rub in. Therefore, do a gap-I try to do a gap approximately equal to the sheet thickness of the door leaf, it is me here was 1.5 mm, respectively, before it potholder loop I put it on the cutting disc from the Bulgarian thickness 1.6 mm.
Now we make the tack-tack do strictly on the ends of the loops. When we catch, the loop tried hard to press, or welding without clamping it potholder pull to the side, and will be broken alignment. We are weakening the hold-down loops in 5 seconds after both end tack-not before. Yes loop presses not only to the door of the box, but also to guide proftrube, then everything will turn out well!
After tack loops at the ends, we unscrew the clamp from proftruby, and we place the pipe in the loop to visually assess their the horizontal plane, where if it is violated, to tinker with a hammer, but usually, if properly pressed during tack, everything It is exactly!
Now we need a platform made of thick metal, I prefer them to saw grinder from the corner, leaving a wall about the size of half the thickness of the loop. These sites we connect welding movable part of the hinge-mother, with the door leaf.
Many at this stage is already welded to the platform hinges and the door leaf, but I still do a little work to make it a welded joint was the most durable.
I take a marking pen and lead round the area, and then make notes about the level centers (middle) Profile door frame. Then these marks do point-welded irritant electrode metal sheet and welding the sheet by the door frame. Then we clean the grinder welded point to zero.
Will simply pass welds are here, and they are tightly tie a loop through the area, not only with sheet metal paintings, but also with the door-frame is shorter with this method everything will be safely cooked, and never anything rebound!
Now we catch site and start to weld hinges to the frame, playground, welded to the web. Alternately welds do something on one hinge, and then on the other hand, simply can not be right to cook all the seams on one hinge, otherwise it may turn out metal deformation from excessive heat.
That's all we have welded hinges correctly ago worked out for himself such a technology and the result always turns out great.
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