Copper wire. Areas of use

One of the most valuable metals on earth is copper. It is an excellent conductor of electricity and heat, which is inferior only to silver in these parameters. A copper wire is almost the best material for filigree works. But most of all it is used in the industry as a conductor of electric current. Another copper wire has a high plasticity. It is also relatively inexpensive and very technological. It can be bent and cut, it easily lends itself to any kind of welding and soldering, copper wire is available for drawing and rolling. Also, it does not care about both high and low temperatures (from -200 to +250 degrees), and it is not affected by atmospheric and soil moisture. In addition, such a wire is practically harmless and has a long service life. And thanks to these positive qualities, they use it very widely.

A manufactured electrical copper wire of the same name material, whose brand is not lower than M1, and the chemical composition corresponds to GOST 859-2001. This is a metal of high enough quality with a minimum content of impurities (about 0.1%). And the cross-section near the wire M1 is round. It also undergoes annealing, and this increases its plasticity, and also makes it possible to process it by cutting. And cold deformation gives it a high hardness. And for the electrical industry, such wire grades as M1 and M2p are used. And the additional letter "E" in their design indicates that they require tests for electrical conductivity. Also, depending on the hardness of the material, it is still divided into a solid MT and a soft MM. At the same time, copper wire of each of these brands has its advantages and scope. And by design, it can be divided into electrical, wire for rivets and for low-temperature thermocouples.

And copper wire is used in the electric power industry, construction, printing, mechanical engineering and light industry. It is made of contact wires, cables, rivets, decorative elements and low-temperature pairs. In the shoe industry, small copper nails, fittings and studs are made of it. And in such industries as engineering, telecommunications and shipbuilding, it is indispensable. Here it is used as windings for electric motors and transformers, from which conclusions of spark ignition and fuses are drawn . At the same time, it is easy to work with it, since it has a high plasticity. Another resistance of copper wire is smaller than that made of aluminum, besides it is stronger. Therefore, it is more profitable to make an electric wire, since for the same voltage and current strength, a light and thin wire is required.

Also copper wires and cores of cables are clad with a metal such as nickel, which has its advantages over tin and silver, especially in some applications of cable products. This is due to the fact that copper wire, covered with nickel, has a high resistance to corrosion and oxidation, as well as to the effect of critical temperatures. And it is used mainly in the manufacture of high-quality multicore cables, which are intended for aviation, electronic, space, telecommunications and defense industries. Also from copper-nickel wire high-temperature cables, spark-ignition leads and fuses are made. It can withstand a temperature of up to 750 degrees.