Technology of argon arc welding.
To use this method of welding required Standards, regulatory and facilitates the construction of the technological chain of actions aimed at establishing a quality weld connections, whether they are: installation of the pipeline or the maintenance, fabrication and installation of tanks and tank equipment, fabrication of structures for industrial use, as well as structures interior or small-scale production of welding.
The core list of state standards used for the argon-arc welding: Welding Connections Standard 3242, GOST 23870 weldability of steels, GOST 14 782 Non-destructive testing, GOST 16037 Welded joints of steel pipes, GOST 14771 Arc welding in a protective gas, GOST 23518-79 Arc welding in protective gases , joints.
The essence of this type of welding - electric arc is burning in the direction of the tungsten electrode to the product, inert gas, argon or helium or a mixture of gases. These gases are inert - they are not combustible and function of protection (enveloping) and the burning of the arc welding bath, ie workpiece from the surrounding air. In case of insufficient protection of the welding bath is an inert gas, deoxidation of the molten weld metal, which dramatically reduces the quality of welded joints and therefore the product as a whole. Number of protective gas is caused by the external environment (the presence of wind, drafts) as well as the power supply. At low current loads up to 60 - 80 A-installed shielding gas flow rate of 4 - 5 liters per minute. This amount is sufficient to protect the weld joint from the harmful effects of oxygen contained in air. At higher current loads and conditions of the external factors - the amount of inert gas can be up to 15 - 18 l / m
Argon-arc or argon welding, can weld most metals.
+ Low-carbon and low alloy steels: St-1, CT-2 CT-3, CT-4, St. 5, St. 6, 15G - 20G, 15H, 1 5HA, 20X, 15CrMo, and so 14HGS .
Cast: Average welded cast iron with a carbon content not bolee1, 4%.
03H17N13M2, 02H18M2BT, 02H28N30MDB, 03H17N13AM3, 03H17N14M3, 03H18AN11, 03H18N11, 03H18N11, 03H22N5AM2, 03H23N6, 03H24N13G2S, 06H18N11, 08X23H13, 08X25H4M2, 08H12T1, 08H13, 08H17T, 08H18N10, 06H18N11, 12H19N10T and many others.
Titanium and its alloys:
VT1-00, W-0, OT4-0, OT4-1, OT-4, VT5-1, BT-5 BT-6, VT3-1, W-8-OST 90013-81
Aluminium: AMts, AMtsS, AMg2, AMg3, AMg4, AMg5, AMg6 AMg6M, AB, D1, AL1-AL13-GOST 2685-44, etc.
Copper: M0, M1, M2, M3, M4, GOST 859-41
Brass: A-62, A-68, A-70, LA77-2 according to GOST 1019-47
This method of welding as great:
The design of interior, furniture, stainless steel, stainless steel guard-rails and accessories for swimming pools and saunas, décor items for bathrooms, stainless steel furniture, construction of cafes and restaurants interior designs, design entertainment centers and welding of stainless steel elements, interior furniture, additional elements of the interior, exclusive furniture, stairs, tile manufacturer of stainless steel sheets, handrails and interior design, decor, construction, home and interior design, kitchen with stainless steel, decorative interior elements of fencing, production of interior structures, composites solutions home interiors, interior design and exterior, the style of hi - tech.
Manufacture of tanks, stainless steel and titanium, repair and installation of process piping at the facilities of food and chemical industries, restoration and repair of worn or broken parts, tools, products, automotive radiator repair of refrigeration and air conditioning, aluminum units and blocks of cars, boats, yachts, household appliances and many others
In industry, this type of welding is used: in the food, chemical, pharmaceutical, oil and gas, automotive, shipbuilding, agriculture, as well as the space industry.
To date, argon-arc welding is the most common welding for use with non-ferrous metals.
With a number of advantages, such as high uniformity of deposited weld metal, the opportunity to work with small wall thickness product, the simplicity of the technological principles of wide application, there are also "cons" of its application: ill-suited for products with high wall thickness, with a large length of joints and welding process is relatively slow, as well as the emergence of welding deformation. In this case it is advisable to use other types of welds as MIG / MAG-that yields a higher welding speed and greater number of weld metal.
In modern industry, the higher profitability of the welding process, often alternate types of fusion: argon arc GOST 23518-79 WIG / TIG - manual arc GOST 11534-75 MMA, as well as argon-arc WIG/TIG- semi-automatic MIG / MAG Standard 11513 -75
Welding equipment for argon-arc welding, significantly stepped-over the past few years. On the world market are welding machines known firms: Migatronic, Kemmpi, EWM, Fronius, ESAB, and others who have a wide range of welding functions, allowing the welder to achieve a high quality of their work.