Electrodes – elements of the welding circuit for supplying current to the work piece. The electrodes are divided into metallic and nonmetallic. Metal electrodes – melting involved directly in the formation of weld, and non-consumable, for supplying current to the product, filler metal is introduced from the outside. Wire In today's market is represented by wire in a wide range. Welding (copper-plated, powder), zinc and coated general purpose. For more specific information, check out Ping Fu. Welding wire is used directly for welding, and for the manufacture of electrodes. 1. Manual electric welding.

Electric arc welding based on the phenomenon of electric arc between the electrode and steel welded steel parts, which melts the base metal and the metal electrode, forming a weld that connects the separate parts into one whole. Welding open electrode or wire, exposed arch gives substandard welds, since the molten weld metal oxygen fall, forming oxides of nitrogen, forming a nitride, so that the seam becomes brittle. For formation of a protective gas environment and better for the ionization of air space to the electrodes applied plaster. However, the quality of the weld is still low. Therefore, for this type of welding electrode used wire with a coating. These include alloying coating substances that improve, mechanical properties of sutures. 2. Automatic and semiautomatic welding.

The principle of automatic submerged arc welding is that the electrode fed to the welding point automatically for continuous unwinding of the bay of the electrode wire. The electrode is fed automatically head, which acts as a welder at the hands of manual welding. Instead of dressing apply a certain bulk chemical composition (flux), which is filled electrode tip. Flux completely isolates the weld point of the air, as arcing occurs under a layer of flux. As a result, obtained a uniform, tight seal with deep penetration, which has high mechanical properties. For suturing, which is inconvenient to carry out automatic welding, can be used semi-automatic welding hose submerged. The idea of this type of welding is that the thin electrode wire diameter of 2 mm is fed to the welding point on the flexible hose in a mechanized way, and the movement along the seam by hand. Flux is fed directly from the holder, which are also buttons. In this case, the wire is irreplaceable and will be better than using the electrode. 3. Arcogen welding in carbon dioxide used for low-carbon steels. Gas is fed to a special burner, flowing consumable wire electrode, which can be fed automatically. Argon welding is used primarily for welding metal, as well as thin sheets of high-alloy stainless steels and superalloys. Performing welding, torch, inside of which is non-consumable tungsten electrode, exciting and supporting the electric arc, and it wraps around the outside of the protective gas – argon. In the weld pool is administered in the form of filler wire. 4. Electric welding fusion. When an electric fusion welding is used The following welding products: welding wire, and non-consumable electrode melting rods, coated welding electrodes. Semi-automatic welding equipment is most often used with steel copperplated wire as electrode. But semi-automatic, you can cook stainless steel and aluminum. In this case, welding is conducted using the appropriate wire and gas. From all we can conclude that it is better to use the wire in electric welding, semi-automatic and in some cases, manual welding. And the electrodes should be used in manual, automatic, and gazoelektricheskoy types of welding.

Installation of windows in the modern world is gaining popularity and it does not matter, wooden box or plastic. A growing number of companies can offer their services in the field of installation of windows. Installation of wooden windows do not lose popularity because of environmental material. The most significant disadvantage of wooden windows is a low resistance to adverse weather conditions. The means used to protect wood from decay, really work exclusively indoors. Replacing wood windows is justified in applying the well-dried wood of high quality. When buying wooden windows with double-glazed windows should not strive for cheap and worth paying attention to the existence of guarantees. Installation of plastic windows, thanks to a completely sealed design effectively keeps the heat in the room.

Prolonged operation of modern life plastic windows with a relatively low price – makes an attractive plastic box purchase. In this regard, it is not a part of the renovation, which should save. Plastic windows in the apartment at the beginning of repair vary. When you remove the old window designs have the opportunity to spoil svezhesdelanny repair. When installing plastic windows using swing-out mechanism that allows you to open the windows in the horizontal and vertical planes. Such a system is effective, simple to use, convenient, reliable, and allows substantial savings available space with the windows open.

Generally, installation of windows – a very important moment in During installation, inappropriate location of spacers may sag doors, which prevents the window seal. Typically, when a window is no longer a problem in its core functions properly. In older homes during removal of old windows can suddenly change dimension collapsing wall construction, due to different depths of the old and the new windows can deteriorate insulation properties glass. In implementing the installation of the window block in the frame must be accurately set the window frame vertically and horizontally, and run the anchor plates. Clearances Intermedia window frame and wall opening should be in the range of 20-50 mm. In the gaps Intermedia frame and wall injected polyurethane foam that provides thermal insulation assembly of the joint. Subsequent work on finishing and adjusting window slopes fittings must be carried out only after complete solidification of the foam. The pledge of long work of the new window, regardless of the materials of its manufacture – is well-executed installation of windows.