How to cook electric? How to make a vertical seam by electric welding. How to boil metal by electric welding

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2018-04-05 13:45:32

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Often it is required to connect metal parts or pieces of parts. There are several ways to get the desired result. Most often to connect the iron and steel parts used method of welding.

What is it based?

how to learn cooking by electric weldingHow to cook electric? In order to understand the principle, you need to remember physics from the school curriculum. One of the wires of the welding machine is connected to the working part. Upon contact of the electrode with the surface of an electric arc. At the point of contact, a recess is formed, which is filled with molten metal as the electrode. The edges of metal parts to melt under the action of huge temperatures and turn into a single entity.

Methods of arc ignition

By Learning to cook metal welding, it is necessary to learn something about the method itself. Distance and high temperature electric pulse between the work piece and the electrode is called the arc. To create these conditions there are two ways:

  • In the first case electrode (quickly touch) “strike” on the iron like a match. The resulting arc should be retained, taking the additive to several mm from the working surface of the metal.
  • In the second case, the tip of the electrode is necessary to sharply tap on the workpiece.

The Resulting arc does not turn off. If it happened before you continue welding, the joints must be cleaned from scale. Ignoring this rule leads to the formation of holes.

The Importance of amperage to weld

how to learn cooking by electric welding

Calculation of the current intensity corresponding to the thickness of the electrode, show in practice how to learn cooking by electric welding. When there is insufficient current, the electrode will get stuck, and arc-off. At high current the metal will spray and burn. If you use the welding transformer, the electrode in 1 mm corresponds to a current of 30-35 A. When using an inverter welding electrode in 3 mm corresponds to a current of 80 A. If you raise the amperage, iron can be cut.

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The Electrodes are chosen based on the chemical composition of the metal. There are several types of this filler material:

  • Stalnye;
  • Nemetallicheskie;
  • Chugunnye;
  • Mednye;
  • Latonia.

They are All labeled with index numbers, indicating that, for the metal which hardness and thickness are designed each kind.

Learning how to cook with electric, you need to remember that to obtain high-quality welds, the electrodes must suit the metal thickness.

Welding flat sheets of metal

Thin metal (from 1 to 3 mm) connecting the butt joints without gaps and additives, achieving a good agreement between the aligned edges.

For a better fit joints thicker sheets (from 3 to 8 mm) edges must be cut at right angle. Between the sheets leaving a gap of 2 mm. Material thickness of 8 mm connected double-sided welding. For the connection of thicker planes of the edges are cut with a bevel.

Where to start to learn to cook iron

how to make metal weldingLearning how to cook by electric, starts with the most basic processes.

  • Cooked parts are fixed on the horizontal surface (for table soldering).
  • Tacks fasten the edges and in the center.
  • To insert into the holder a new additive and attach to the part clamp of the mass.
  • First work out the correct slope of the electrode (about 75 degrees) in the direction of the arc. Thus it is necessary to make movements as if raking the molten metal in the junction.
  • The End of the electrode must have a center seam. Following the angle of the drops evenly pour over the hot electrode and level of quality platen to form a weld.
  • After cooling of the workpiece need to beat the slag from the surface of the part.

Over and over Again, as you gain experience, the joints will get smoother and neater.

How to make a vertical seam

how to make a vertical seam by electric weldingHow to make vertical seam welding? Main – to start, following all the recommendations. Welding of vertical joints is similar to horizontal, only a little more complicated. Workpiece sticking in two or three places. Then the welding lead from the bottom up, prolapse drop by drop. Gradually, the whole gap is filled with hot metal. How to learn to cook electric? The challenge is how to merge both edges, melting them and welding arc, simultaneously directing to the same metal droplets from the molten state to the liquid end of the electrode.

You Can make the seam not drops, and the so-called “eight”, but this can handle only an experienced specialist. So, if you're interested to know how to learn how to make a vertical seam by electric welding, it is advisable to look at the work of an experienced welder, to listen to the advice of the masters. And only then on their own to start the process.

How to make a beautiful and sturdy corner seam

welding seamsRight to do so-called “t” the seam is not as easy as to learn to cook by electric welding. This seam is used when you want to seal parts at differentangles. The metal parts are set so that the weld flowed into the corner. Recorded “boat” welded part primatyvajutsja from opposite sides. In addition, one edge of the workpiece is lifted a little higher. The welding process should start from the bottom. In this case, carefully follow the instructions how to cook the welding, the weld quality can be markedly improved.

What welder is best to use

  1. Old welding machines with an adjustable magnetic gap, allowing you to adjust the strength of the current-transformer. There are many options and models with rheostats and incremental inductors on the primary or secondary sides of transformers.
  2. Inverter apparatus – more modern welding device. Working from the high frequency transformer of such aggregates has smaller dimensions and small weight. In such devices it is possible to smoothly adjust the welding conditions. The last setting should be carried out carefully, otherwise the machine may quickly become unusable.

Methods of welding of pipes

how to boil a pipe weldingIn the absence of experience to learn how to weld pipe with welding, better on thick metal. Depending on the thickness of the tube wall, make several passes. Multilayer welding improves the mechanical properties of the weld, the connection becomes stronger.

First cook the semicircle to one side, then – in the second. In the way of doing seam “top down” use the 4-mm electrodes having an organic coating. In short arc, based on the resulting "visor" consoles are small transverse fluctuations.

When working on the way “bottom-up” sharply reduce speed. Management of the transverse oscillations of the electrode are doing 3-5 mm.

When welding structures made of pipes you need to pre-prepare and arrange all the material on a welding table or booth. Then they ottsentrovano and pull together to get the desired welding gap. Collected joints sticking together.

Pipe with a small diameter connect continuous welding, with large diameter – intermittent way. After completion of all welding processes, the working, the metal surface is cleaned from scale, frozen splashes of slag. Performed visual inspection to detect cracking or burn-through, leaving craters or pores. In the presence of a poorly welded made restoration of the joint.

For your own safety you need to work during welding gloves and suede gloves, mask, welding, canvas or heavy leather boots and cotton overalls. Necessarily there should be a fire extinguisher or container of water.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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