How does welding?

Buy contact welding is possible for both domestic and industrial needs. Depending on the conditions selected the appropriate type of fixtures. However, all the equipment share the same process.



The principle of operation


The algorithm is based on the application of an electrical current of high voltage, which, transforming into thermal energy at the site of contact, provides a reliable connection together with the pressure exerted on the work surface.

Sufficient pressure achievable by the mechanical parts of the machine. The right technology ensures making the perfect seam, characterized by high strength and integrity, even during heavy loads on the part. This method of welding is widely applicable to all types of work requiring metal compounds.

Based on the conditions of production, equipment can be:

• stationary;
• suspended;
• portable.

Apparatus for resistance welding in Moscow differ a narrow focus, however, is isolated and universal model. The internal structure of the devices:

1. In addition to the electrodes in the mechanical part includes elements to compress the metal surfaces of the rollers. For stationary products are often applied hydraulics needed to create the appropriate pressure and rolled products.
2. The electrical part includes a transformer, a primary circuit breaker and other elements, which are responsible for the supply of current to the junction and the formation of the desired voltage in the mode of DC or AC.

Shop gas welding equipment offers devices with a large set of electronics, which enables the welding process in different modes, to adjust the power current, etc.

The process of butt welding

1. Treatment of connected surfaces. Necessary to obtain more accurate contact details. Throughout the coverage must be the same voltage. This can be achieved by using flat surfaces, when processed mechanically – Stripping, etching, straightening, degreasing.
2. Clip products by special machinery or by hand. Sufficient pressure contributes to the creation of a homogeneous solid seam.
3. Supply of the metal electric current: the desired area is melted under the action of thermal energy, there is a liquid-formed connection between the surfaces.
4. Off current leads to a cooling of the liquid core and formation of the weld.

The price of welding machine depends on the type of welding (spot, relief, butt, seam), the power and speed of the workflow. The main advantages of such a connection: high productivity, perfect weld quality, minimum cost of consumables.