Welder

Welder on contact (press) welding machines

Professional Features

The professional functions of a welder on resistance (press) welding machines of the 4th category include:

• Welding on contact and spot machines of products, assemblies, structures, pipelines and tanks of various steels , non-ferrous metals , alloys and non - metallic materials. Friction welding of a compound cutting tool. ^[one]

Professional Tools and Equipment

• Welding machines , semiautomatic welding machines, rectifiers .
• Welding electrodes , welding wire . by the rule.

Diffusion Welder Welder

Professional Features

The professional functions of a welder in diffusion-welding installations of the 6th category include:

• Welding on multi - chamber diffusion-welding installations of experimental, expensive, unique units and parts made of metals and alloys in various combinations subject to special tests. Welding in special furnaces of structures such as honeycomb panels with a filler area of ​​over 1.7 square meters. m. Works on the saturation of metallic materials with nitrogen in special equipment. ^[one]

Electron Beam Welder

Professional Features

The professional functions of a welder in electron beam welding machines of the 6th category include:

• Electron beam welding in a vacuum of expensive assemblies and parts from special alloys . Welding complex assemblies and parts, welding products with a limited degree of heating. Welding small and miniature products. Welding products designed to work in conditions of shock and vibration loads. Maintenance of high - vacuum systems with automatic control or with a continuous production cycle. Welding of metals and alloys in various combinations with a metal thickness of up to 0.8 mm. Continuous monitoring of the pumping process according to instrument readings and welding process control. Obtaining the optimal parameters of the electron beam and their changes in order to obtain the optimal section of the seams . ^[one]

Termite Welder

Professional Features

The professional functions of a welder of thermite welding of the 2nd category include:

• Thermite welding of parts of varying complexity. Press installation and alignment, dressing of welded surfaces, installation and coating of molds. Stuffing molds, dredging models and drying molds. Preparation of a mixture for crucibles, their manufacture and burning . Heated surfaces to be welded with a gas appliance and a roasting pan. Sifting manually or on a seeder and crushing termite components on a crushing machine , mixing them, packing and stacking in batches. Metal cutting after welding. Regulation of the operation of the ventilation unit. Lubrication mechanisms. ^[one]

Gas welder

Professional Features

The professional functions of a 6th grade gas welder include:

• Gas welding of complex parts, assemblies of mechanisms, structures and pipelines from high-carbon , alloyed , special and corrosion - resistant steels, cast iron , non-ferrous metals and alloys designed to work under dynamic and vibration loads and under high pressure. Metal cutting torch . Hard alloy deposition of complex parts, assemblies, structures and mechanisms. ^[one]

Electric welder

Professional Features

The professional functions of an electric gas welder of the 6th category include:

• Manual arc , plasma , gas-shielded arc welding ^[2] and gas welding of particularly complex apparatuses, parts, assemblies, structures and pipelines made of various steels , cast iron , non-ferrous metals and alloys designed to work under dynamic and vibration loads and under high pressure . Manual arc and gas-electric welding of building and technological structures working under dynamic and vibration loads, and structures of complex configuration. Automatic welding of various structures from alloyed special steels , titanium and other alloys on automatic machines of a special design, multi-arc, multi-electrode machines and machines equipped with television , photoelectronic and other special devices, on automatic manipulators ( robots ). Mechanized welding of apparatuses, assemblies, pipeline structures, building and technological structures operating under dynamic and vibrational loads when welding seams in the ceiling position and on a vertical plane. Welding of experimental structures from metals and alloys with limited weldability, as well as from titanium and titanium alloys. Welding complex structures in block execution in all spatial positions of the weld. ^[one]

Gas Cutter

Professional Features

Manual oxygen cutting and cutting of steel lightweight scrap with petrol and kerosene cutting machines. Preparation of castings for cutting, stripping from burns, profits and gates and laying them for cutting. Charging and discharging a gas generator. Oxygen - flux cutting of parts from high chromium and chromium nickel steels and cast iron. Gas cutting ship objects afloat. Cutting profits and sprues for castings having several connectors and open pivot marks.

Must know: device serviced stationary and portable oxygen and plasma - arc machines, hand torches and generators of various systems; the device of special devices; properties of metals and alloys subjected to cutting; requirements for copiers in machine figure cutting, and the rules for working with them; tolerances for accuracy in gas cutting and planing; the most favorable ratios between metal thickness, mouthpiece number and oxygen pressure; mode of cutting and gas flow during oxygen and gas-electric cutting.

Persons not younger than 18 years of age who have undergone special training and verification of theoretical knowledge, practical skills, knowledge of labor protection instructions and fire safety rules and who have a “Welder Certificate”, an entry in the qualification certificate on admission to perform special works and are allowed to electric welding, gas welding works special fire safety certificate. ^[3]

Exposure to the welder of ultraviolet radiation, high temperature, harmful gases can lead to diseases:

• Electrophthalmia
• Pneumoconiosis
• Silicosis
• Neurotoxicosis (Manganese Intoxication)
• Pneumoconiosis of electric welders
• Occupational eczema
• Dust bronchitis
• Bronchial asthma

A great contribution to the theory of welding and its application was made by:

• Benardos, Nikolai Nikolaevich (1842-1905) - Russian inventor, one of the creators of electric arc welding of metals with non-consumable electrode.
• Slavyanov, Nikolai Gavrilovich (1854-1897) - inventor of electric arc welding of metals with a consumable electrode.
• Borchaninov, Luka Ivanovich (1837-1905) - a worker, one of the first welders in Russia, worked under the leadership of Slavyanov.
• Paton, Boris Evgenievich (born 1918) - Soviet scientist in the field of metallurgy and welding. Academician of the Academy of Sciences of the Ukrainian SSR .
• Kubasov, Valery Nikolaevich (1935 - 2014) - Soviet cosmonaut, the first in the world to carry out welding work in space.
• Erich Honecker (1912-1994) - Head of the GDR and SED , worked as a welder in 1930 at the Magnitogorsk Iron and Steel Works .

• The profession is included in the TOP-50 list of the most popular professions according to the Ministry of Labor of the Russian Federation ^[4] .
• Monument to the welder is installed in Krivoy Rog ^[5] .

• Welder suit
• Gas cutter
• Arc welding

• "Welder" - production and technical magazine