Plasma cutting promconstruct.ru is a guarantee of high quality and promptness of order fulfillment. It is carried out on modern automated equipment. Plasma cutting of metal is a type of processing in which the function of a cutter is performed by a plasma jet. An electric arc is formed between the nozzle of the apparatus, where the gas is supplied, and the electrode. The cutting process is based on the use of a gas that is under pressure of several atmospheres and is converted into a plasma jet under the influence of an arc. The properties and technical parameters of the plasma flow depend on the shape and size of the nozzle channel. By changing these parameters, it is possible to adjust the flow rate, energy concentration and arc voltage. The use of a plasma jet makes it possible to cut both sheet metal and thick metal sheets.Among the advantages of the method:the ability to process any metal; ensuring high cutting speed of thin and medium thicknesses; limiting heating in a local area; eliminating thermal deformation blanks; no restrictions on the geometric shape; guarantee of process safety. The use of plasma cutting of metal allows you to get an ideal surface that does not require additional machining. High productivity, quality and low cost of the process provided this technology with wide application.
Plasma cutting technology
There are many ways to cut metal. Even if we are talking about something household, for example, in home construction or handicraft production, with an ordinary hand saw for metal. Or a "grinder", or even a simple file. But, if we are talking about industrial production and construction, even if it is not large-scale, such methods are ineffective. Another thing is thermal cutting of metal using innovative methods: laser, gas, plasma. However, today the use of a laser does not look particularly “new”, but in the 70s, thermal cutting made serious changes in the production processing of metal material. using an electric arc to a temperature of thousands of degrees. It can be used - depending on the type of metal and the characteristics of the material (thickness, geometry), - either air or another active or inert gas pumped by a compressor.
Plasma cutting of steel
Precise and, no less important, fast cutting (at a speed that is optimal for the production flow) is based on the creation of an electrically conductive plasma channel. Its temperature should melt the metal. At the same time, high pressure is created - to blow out unnecessary molten metal (fusible waste). This is the cutting of the workpiece.
Advantages of plasma cutters
There are two main advantages of using plasma cutters when working with steel material. Firstly, plasma cutters work much more accurately than conventional autogenous and gas cutters. No less important is the fact that “behind the plasma cutter” it is not necessary to process the edges of the product again. If gas cutters and electric welding machines, most often, leave "scars" on a metal surface, then this cannot be said about plasma cutters. Such a clean and neat cut can be obtained due to the possibility of adjusting the current strength. An experienced craftsman, choosing the current and cutting speed for a particular project, first makes several test cuts at high current. And reduces it, "tuning" the speed. The filigree pre-adjustment is very important, as it will avoid deformation of the metal and the formation of scale. And this is inevitable if the metal material overheats due to the disproportionality of the "duet" of high current and low cutting speed. But the ability to accurately set the speed and accuracy in working with steel is not all. The plasma technique is more effective than other methods of cutting metal even in the position of the thickness of the original blanks.
Cutting steel on CNC machines
The power of the manual torch is sufficient for fast professional cutting of steel sheets up to 40 mm thick. Huge industries use powerful numerically controlled (CNC) steel-cutting machines - they are used to cut steel sheets up to 150 mm thick, more like metal plates. Taking into account the fact that steel is an exterior landscape material from which it is made, to for example, the most complex landscape gardening small forms, the ultra-thin jet of gas plasma erupting from the cutter nozzle is especially effective for artistic metal processing. Expensive and bulky plasma cutters of the 80s are now history. At the end of the 20th century, another modernization took place in the field of metal cutting, CNC machines appeared. At first, they were used only to copy template parts in simple mass production.
