Hello everyone on the starter and garage self-taught welding channel. Let's talk about electrodes that are suitable for welding with a shaped pipe. Profile pipe is the most common and convenient material for most household welding structures.
Let's start from afar to make it clear. The profile pipe is a very convenient material - easy to dock in all positions, rectangular pipe design. You just need a square and more or less know the geometry.
But for beginners there is a big ambush - the very thickness of the metal at the professional pipe is very small. Most of the pipes that are needed to weld a fence, door, shower, awning are 1.5-2 mm.
Therefore, such thin metals will be easier to cook precisely with the separation of the electrode. Lit, weld a point and interrupt welding. And so point by point, pull-off welding.
Not all electrodes are capable of welding with frequent separation. Rutile or rutile cellulose coated electrodes are suitable for this welding technique.
These electrodes can weld not only with frequent pull-off, point by point, but they also do not need a perfectly clean surface of the metal to be welded. It can be welded on both rust and light dirt and paint. But it is better to cook the surface normally - let it be clean.
You can also cook on any polarity - minus on the holder or plus, it is possible to connect this way and that. About this at the end of the article, how and when it is better to connect.
What brands are they?
The most common brands are
MONOLITH
ANO-21
MP-3
OK-46
When you're in the store, pay attention to these electrodes. You can even just ask the salesperson to show you the rutile electrodes. Well if he fumbles what it is! As a last resort, show him this article on your phone!
As promised, where to connect the holder with the electrode, to the plus or minus of your welding inverter. For rutile electrodes, such a pattern, we cook a thin metal-holder with an electrode, connect it to the minus. This is straight polarity. This is less likely to burn.
The metal is thicker, about more than 4 mm, then the opposite is true. Connect the holder to the positive terminal of the inverter. This will improve the penetration and penetration of the metal.
Friends, this is one of hundreds of articles to help self-taught beginners in welding. If you want to master this interesting and necessary craft faster, add the channel to your bookmarks and subscribe. Better to peep good advice on how to do it than to master everything for a long time by trial and error!
