The device for welding twists with your own hands

Provision of residential buildings and production areas with electricity is performed by electricians. Experienced workers in their work use factory welding machines for welding twists. And they are sure of the quality of the completed installation. But homemade devices are not inferior to the quality of their work.

Types of welding machines

Today, there are many devices that can ensure trouble-free operation of electricians. Some of them are quite expensive, others are free fruits of engineering thought.

The following types of welding apparatus for welding copper strands are used:

1. Professional equipment, developed and manufactured by the industry. Import and Russian production. For example, an industrial apparatus for welding twists TS-700.
2. Inverters. Rectifiers capable of welding ferrous and non-ferrous metals.
3. Welders, created by self-taught.

Self-made apparatus for welding twists

When a person thinks about buying such equipment, he starts to wonder whether it can be done on his own. Indeed, many electricians, who have extensive experience in handling electrical equipment, have realized the idea of making an apparatus for welding twists with their own hands.

Basic concepts:

1. The current strength is indicated in amperes.
2. Voltage, measured in volts, applied to the welding machine.
3. Type of current. There is a constant and alternating current required by the welding units.

Rich experience of work prompted them to use a transformer from a broken microwave. Such an aggregate is capable of producing 4 kW.

The main stages of work:

• Carefully disassemble the microwave.
• Transformer free of all unnecessary.
• Upgrade the transformer for the required purpose.

Disassembling the transformer requires special attention. Choose it better with power from 700V to 1000V. Welding seam can be sawn by a Bulgarian with a thin circle. From the extracted microwave material useful magnetic circuit, the transformer itself, which has a thicker section of the primary wire and a small number of turns.

Modernization

The primary winding will suit us perfectly. The next thing you need to do is to throw out the secondary one. Remove it to us will help an ordinary chisel and metalwork tool. Gently removing and cleaning the secondary winding, you need to look at the magnetic circuit, if there are shunts, they will have to be dismantled. . Secondary winding of the new apparatus for welding copper strands, it is necessary to make a section of 15-20 m ?. Approximately 12-13 turns.

If it is not possible to find the necessary copper core, you can use twisting, that is, several laid parallel strands. . The main condition for such twisting is the final result - the tire should be 15-20 m ² .

For isolation, tissue insulation is suitable. Having manufactured and insulated the copper bus, carefully produce the secondary winding of the transformer. The measured voltage should be from 9 to 36 volts.

Having thus modernized the transformer of the apparatus for welding twists, we proceed to manufacture the remaining elements of the welding machine. To do this, you need to make sure that certain important conditions are met. The wires from the upgraded transformer to the apparatus for welding wire twist must be a cross-section not less than the section of the secondary winding, that is, 15-20 mm². It must be taken into account that the wires heat up during welding. Copper heating is fleeting.

Holder and machine weight

In the process of working at height, the convenience of the holders for welding wires is of great importance.

The optimal solution is the use of carbon electrodes. Some are used in self-made welding machines for welding strands of rods of carbon electrodes from batteries.

Many use simple brass "crocodiles" to hold the graphite electrodes from the battery. But as mentioned above, the heating of the wire and various devices in the welding process is great. "Crocodiles", heated and charred, lose their direct purpose. The material becomes soft and can not hold the electrode.

Techniques for the use of carbon electrodes

Consider one most rational way of using a carbon electrode. A carbon brush is taken, in which several grooves were pre-drilled to weld copper strands of different cross-sections. Brush to take from the electric motor of high power.

On graphite brushes there are conclusions, to which it is possible to solder wires from the apparatus for welding twists successfully.

To keep it comfortable to hold it at the height, you need a holder. I'll have to make a self-made yoke that holds it. Attach a pen to it. You can take a handle from a chisel or file. In modern chisels we use material that does not pass current, which is very good for work. The holder made in this form is very convenient. Inserted into the drilled cavity, the twine is perfectly welded and has a neat appearance.

Manufacture of a second welding holder

The second wire from the self-made apparatus for welding twists is very well connected to the pliers. The connection must be secured to the handle of the pliers by soldering. There are various methods for soldering steel and copper. It is easier to use a copper tube, at the end of which the second wire of our homemade piece is inserted and sealed. The tube is also soldered to the pliers. This design is very convenient and reliable. For efficiency, it is good to drill a pair of holes for twisting wires of different cross-sections in the pliers of the pliers. The maximum length of the wires is not more than 3 meters. Otherwise, the resistance increases.

How to make the switch of the welding machine?

One of the conditions of convenience in work is the direct contact of the twisting of wires with a mass from the welding equipment and the holder.

Working with constantly-on equipment requires a lot of experience. When the mass and the holder come in contact, lightning contact occurs, which is not very good when working with a ladder or ladder.

People who were able to make a welding machine for welding twists with their own hands, solved this problem simply. The switch connected to the primary winding was placed on the handle of the holder.

With the power off, wire twisting is quietly installed in the groove on the brush. After the twisting is established, the voltage is applied and the welding mode occurs. Brewing twist, the power is turned off and the time for cooling the twist is given. The work is safe and convenient.

Pliers, in addition to the function of the holder, play the role of a heat sink. The temperature that occurs during the welding process heats the pliers, so the wire that goes to the transformer does not overheat. Work with such equipment is not worse than with the TC apparatus for welding twists. It is advisable not to forget to put in the homemade two single-pole machines, protecting the windings from overload.

Device body

A casing for its self-made welding machine for welding wire twists can be made from various out-of-order apparatuses and equipment in the casing. At home or in the garage, you will certainly find an old household appliance, which you can use for a truly worthwhile cause.

For this purpose, the oscilloscope housing, computer and other suitable equipment is suitable, preferably with slots in the casings for ventilation.

The basis for a homemade welding machine is better to make from textolite or getinaksa. Having thus removed our homemade welding unit in the body, we will produce a belt device, which is necessary for work on the construction site. Hanging his welding device on his shoulder, it is convenient to work with him on the stepladder.

What you need to know about preparing wires for twisting?

The wires must be stripped from the insulation by about seven centimeters. This is done so that it does not melt in the process of welding twists. Also, do not forget to leave wires of sufficient length when wiring in junction boxes. After twisting the wires, remove their excess length with the help of side cutters. Having bitten off superfluous, it is possible to receive accurate twist, convenient for welding, and having made welding twists, to have qualitative and reliable connection.

At this stage, we can assume that the self-made device for welding twists is ready. It remains only to test it in action.

Conclusion

The use of the device for welding twists TS-700 2, of course, is convenient. A light weight of 4.5 kilograms in a reliable case on the belt ensures its mobility.

A reliable electrode that can withstand up to 1 thousand weld pulses makes it a desirable tool.

But the average cost of 10 thousand rubles is not for every electrician in the teeth. So why would a welding machine made by one's own hands not be packed in a protective casing and not equipped with a belt? Use it will become as easy as the branded welding equipment.

To make a self-made apparatus for welding copper strands, using these recommendations, anyone who is a little versed in the field of electrical engineering can. The cost of homemade equipment is lower than the factory counterparts. However, the reliability and quality of the welding work will be high, which has been fixed many times already.