Name of the organization I APPROVED WORK INSTRUCTIONS Name of the position of the head of the organization _________ N ___________ Signature Explanation of signature Place of compilation Date ELECTRIC WELDERS ON AUTOMATIC AND SEMI-AUTOMATIC MACHINES (3rd DIGIT)

1. GENERAL PROVISIONS

1. An electric welder on automatic and semi-automatic machines is hired and dismissed from work by order of the head of the organization on the recommendation of _________________________.

2. An electric welder on automatic and semi-automatic machines reports to _____________________________________.

3. In his activities, an electric welder on automatic and semi-automatic machines is guided by:

Charter of the organization;

Rules labor regulations;

Orders and instructions of the head of the organization (direct manager);

These operating instructions.

4. An electric welder on automatic and semi-automatic machines must know:

Design of used automatic welding machines, semi-automatic machines, plasma torches and power supplies;

Properties and purpose of welding materials;

Main types of weld inspection;

Rules for selecting welding materials;

Causes of internal stresses and deformations in welded products and measures to prevent them;

Rules for setting welding modes according to specified parameters.

2. PROFESSIONAL RESPONSIBILITIES

5. An electric welder on automatic and semi-automatic machines is tasked with:

5.1. Automatic and semi-automatic welding in shielding gases with solid electrode wire of simple and medium complexity parts and assemblies made of carbon and structural steels in all spatial positions.

5.2. Automatic and mechanized welding using a plasma torch in all spatial positions of a weld of medium complexity of devices, components, parts, structures and pipelines made of carbon and structural steels.

5.3. Fusing of simple and medium complexity parts and assemblies.

5.4. Automatic microplasma welding.

5.5. Maintenance of installations for automatic electric power welding and automatic machines for welding structures.

5.6. Assembling parts and assemblies in a fixture before welding; Marking for welding without tools.

5.7. Tacking of parts and assemblies during the assembly and welding process in all spatial positions.

5.8. Checking the tightness of welded seams of simple assemblies using a kerosene test.

5.9. Carrying out pneumatic and hydraulic tests of welded structures and products under pressure up to 100 kPa (up to 1 kgf/sq.cm).

5.10. Elimination of defects in welds using manual arc and semi-automatic welding in shielding gases.

5.11. Gas soldering of welding defects.

5.12. Fitting and straightening parts and assemblies during the welding process.

5.13. Cleaning of weld seams, necessary for further assembly and welding of the unit.

Examples of work.

Welding on automatic machines:

1. Apparatuses, vessels and containers operating without pressure.

2. Car drive shafts.

3. Rear axle axle housings.

4. Car wheels.

5. Struts, axle shafts and landing gear of aircraft.

6. T-joints without beveled edges.

7. T-joints for a set of partitions, decks, platforms, frames.

8. Large machine beds.

9. Joints and grooves of sections, partitions, decks, partitions made of low-carbon and low-alloy steels.

10. Technological pipelines of category V.

11. Car tanks.

Welding on semi-automatic machines:

1. Beater and cutting drums, front and rear axles of a tractor trailer, drawbar and frame of a combine and header, augers, headers, rake and reel.

2. Sidewalls, transition platforms, steps, frames and lining of cars.

3. Raid buoys and barrels, artillery shields and pontoons.

4. Details of freight car body frames.

5. Frames for switchboards and control panels.

6. Track rollers.

7. Assembled casings, heating boilers.

8. Coamings of doors, hatches, necks.

9. Structures, components, parts for gun mounts.

10. Housings of electrical explosive equipment.

11. Dump truck bodies.

12. Small machine beds.

13. Racks, bunker grates, transition platforms, stairs, railings, decking, boiler casing.

14. Smoke pipes up to 30 m high and ventilation pipes made of carbon steel sheets.

15. Connected smoke pipes in boilers and steam superheater pipes.

16. Non-pressure pipelines for water (except main ones).

17. Pipelines of external and internal water supply and heating networks - welding in stationary conditions.

18. Electric couplings.

Welding and fusing:

1. Strikers and hammers of steam hammers - welding.

2. Electrical machine shafts - welding of journals.

3. Brake pads trucks, casings, rear axle axle shafts - welding.

4. Lifting cranes - fusing of slopes.

5. Frames of diesel locomotives - welding of conductors, flooring sheets, parts.

6. Gears - fusing of teeth.

3. RIGHTS

6. An electric welder on automatic and semi-automatic machines has the right:

6.1. Require periodic training on labor protection.

6.2. Have the necessary instructions, tools, personal protective equipment for work and require the administration to provide them.

6.3. Familiarize yourself with the internal labor regulations and the collective agreement.

6.4. Make proposals for improving work technology.

6.5. _________________________________________________________________. (other rights taking into account the specifics of the organization)

4. RESPONSIBILITY

7. An electric welder on automatic and semi-automatic machines is responsible for:

7.1. For failure to perform (improper performance) of one’s work, within the limits determined by the current labor legislation of the Republic of Belarus.

7.2. For offenses committed in the course of carrying out their activities - within the limits determined by the current administrative, criminal and civil legislation of the Republic of Belarus.

7.3. For causing material damage - within the limits determined by the current labor, criminal and civil legislation of the Republic of Belarus.

Name of the position of the head of the structural unit _________ _______________________ Signature Explanation of signature Visas I have read the work instructions _________ _______________________ Signature Explanation of signature _______________________ Date

Characteristics of the work. Automatic and mechanized welding using a plasma torch of complex devices, components, structures and pipelines made of carbon and structural steels, cast iron, non-ferrous metals and alloys. Automatic welding of complex building and technological structures operating in difficult conditions. Automatic welding in a shielded gas environment with a non-consumable electrode of hot-rolled strips of non-ferrous metals and alloys under the guidance of a more highly qualified electric welder. Fusion of defects in machine parts, mechanisms and structures. Welding of complex components, parts and tools. Reading drawings of complex welded metal structures.

Must know: the design of various automatic welding machines, semi-automatic machines, plasma torches and power supplies; basics of electrical engineering within the scope of the work performed; methods for testing welds; brands and types of welding materials; types of defects in welds and methods for their prevention and elimination; influence of welding modes on the geometry of the weld; mechanical properties of welded metals.

Examples of work

On automatic machines:

1. Tanks of unique powerful transformers.

2. Span beams for bridge cranes with a lifting capacity of less than 30 tons.

3. Blocks of building and technological structures made of sheet metal: air heaters, scrubbers, blast furnace casings, separators, reactors, blast furnace flues, etc.

4. Columns, bunkers, beams, overpasses.

5. Head housings, traverses, bases of presses and hammers.

6. Set: frames, stringers, keels, etc.

7. The deckhouse superstructure is made of aluminum-magnesium alloys.

8. External plating, second bottom decking, main deck - welding on rack.

9. Decks, platforms.

10. Foundation slabs for walking excavator units.

11. Hermetic seams of the 1st category - microplasma welding.

Welding and fusing

1. Rolls of rolling mills, tires - welding.

2. Kits for strong ship hull bulkheads - welded.

3. Grilles, caps, distribution boxes - fusing.

On semi-automatic machines:

1. Apparatuses, vessels and containers operating without pressure.

2. Transformer tanks.

3. Fittings and boiler burner housings.

4. Cast iron parts.

5. Chambers of turbine impellers.

6. Frames of industrial furnaces and boilers.

7. Gas exhaust manifolds and pipes.

8. Columns, bunkers, rafter and sub-rafter trusses, beams, overpasses.

9. Regulating rings for hydraulic turbines.

10. Housings and axles of the header drive wheels.

11. Rotor housings with a diameter of up to 3500 mm.

12. Stop valve housings for turbines with power up to 25,000 kW.

13. Fastenings and supports for pipelines.

14. Brackets and pivot fastenings of the diesel locomotive bogie.

15. Sheets of large thickness (armor).

16. Masts, drilling and production rigs - welding in stationary conditions.

17. Longitudinal and transverse sets in volumetric sections for the second bottom flooring and for the outer cladding.

18. Lower engine crankcases.

19. Decks and platforms.

20. Foundation slabs for large electrical machines.

21. Dust-gas-air ducts, fuel supply units and electric precipitators.

22. Conveyor frames.

23. Tanks for petroleum products with a capacity of less than 1000 cubic meters. m.

24. Metal sleeves.

25. Stators of air-cooled turbogenerators.

26. Crusher beds.

27. Frames and housings of electrical machines are welded and cast.

28. Beds of large machine tools are cast iron.

29. Pipelines of external and internal water supply and heating networks - welding during installation.

30. Pipelines of external and internal low-pressure gas supply networks - welding in stationary conditions.

31. Technological pipelines of category V.

32. Car tanks.

Welding and fusing

1. Cast iron parts - fusing.

2. Chambers of turbine impellers - deposition.

3. Compressor housings, low and high pressure cylinders of air compressors - crack fusion.

4. Rails and prefabricated crosspieces - fusing of ends.

5. Beds of working stands of rolling mills - surfacing.

6. Cylinders of car blocks - fusing of shells.

Unified Tariff and Qualification Directory of Work and Professions of Workers (UTKS), 2019
Part No. 1 of Issue No. 2 of ETKS
The issue was approved by Resolution of the Ministry of Labor of the Russian Federation dated November 15, 1999 N 45
(as amended by Order of the Ministry of Health and Social Development of the Russian Federation dated November 13, 2008 N 645)

Electric welder on automatic and semi-automatic machines

§ 50. Electric welder on automatic and semi-automatic machines of the 2nd category

Characteristics of work. Automatic and mechanized welding of simple assemblies, parts and structures made of carbon and structural steels. Carrying out maintenance work on installations for automatic electroslag welding and automatic machines of special designs under the guidance of a more highly qualified electric welder. Tacking of parts, products, structures in all spatial positions using semi-automatic devices. Preparing metal for welding. Fusing defects in parts and castings. Cleaning of parts and products for automatic and mechanized welding. Installation of parts and products into fixtures. Refilling the electrode wire. Reading simple drawings.

Must know: operating principle of used electric welding machines and semi-automatic machines; applied power sources; types of welded joints and seams; types of grooves and designations of welds in the drawings; rules for preparing metal for welding; conditions for using electrode wire, fluxes, shielding gas and properties of welded metals and alloys; purpose and conditions of use of instrumentation; purpose and conditions of use of automatic and mechanized welding; causes of deformation of metals during welding and ways to prevent it.

Examples of work

1. Frames and parts of brake platforms of freight cars and window frames of passenger cars.

2. Steering frames.

3. Guardrail casings and other lightly loaded components of agricultural machines.

4. Header brackets, brake control rollers.

5. Brackets for dump truck subframes.

6. Spring pads and pads.

7. Steel flasks of small sizes.

8. Strips, brackets, clamps for fastening ship pipelines, electrical equipment, electrical wiring.

9. Transformer tank frames.

10. Foundations, small units.

Welding and welding

1. Cradle beams, spring bars and bolsters for all-metal cars and electric section cars - welding of reinforcing angles, guides and centering rings.

2. Rolling beams - welding of points and gripping strips according to the markings.

3. Diaphragms of platform frames and metal gondola cars - welding of ribs.

§ 51. Electric welder on automatic and semi-automatic machines of the 3rd category

Characteristics of work. Automatic and mechanized welding using a plasma torch in all spatial positions of a weld of medium complexity of apparatus, components, parts, structures and pipelines made of carbon and structural steels. Fusing of simple and medium complexity parts and assemblies. Automatic microplasma welding. Maintenance of installations for automatic electric power welding and automatic machines for welding structures.

Must know: arrangement of used welding machines, semi-automatic machines, plasma torches and power supplies; properties and purposes of welding materials; main types of weld inspection; rules for choosing welding materials; causes of internal stresses and deformations in welded products and measures to prevent them; rules for setting welding modes according to specified parameters.

Examples of work

On automatic machines:

1. Vessels and containers operating without pressure.

2. Car drive shafts.

3. Rear axle axle housings.

4. Car wheels.

5. Struts, axle shafts and landing gear of aircraft.

6. T-joints without beveled edges.

7. T-joints for a set of partitions, decks, platforms, frames.

8. Large machine beds.

9. Joints and grooves of sections, partitions, decks, partitions made of low-carbon and low-alloy steels.

10. Technological pipelines of category V.

11. Car tanks.

On semi-automatic machines:

1. Beater and cutting drums, front and rear axles of a tractor trailer, drawbar and frame of a combine and header, augers, headers, rake and reel.

2. Sidewalls, transition platforms, steps, frames and lining of cars.

3. Raid buoys and barrels, artillery shields and pontoons.

4. Details of freight car body frames.

5. Frames for switchboards and control panels.

6. Track rollers.

7. Assembled casings, heating boilers.

8. Coamings of doors, hatches, necks.

9. Structures, components, parts for gun mounts.

10. Housings of electrical explosive equipment.

11. Dump truck bodies.

12. Small machine beds.

13. Racks, bunker grates, transition platforms, stairs, railings, decking, boiler casing.

14. Smoke pipes up to 30 m high and ventilation pipes made of carbon steel sheets.

15. Connected smoke pipes in boilers and steam superheater pipes.

16. Non-pressure pipelines for water (except main ones).

17. Pipelines of external and internal water supply and heating networks - welding in stationary conditions.

18. Electric couplings.

Welding and fusing

1. Strikers and hammers of steam hammers - welding.

2. Electrical machine shafts - welding of journals.

3. Truck brake pads, casings, rear axle axle shafts - welding.

4. Lifting cranes - fusing of slopes.

5. Frames of diesel locomotives - welding of conductors, flooring sheets, parts.

6. Gears - fusing of teeth.

§ 52. Electric welder on automatic and semi-automatic machines of the 4th category

Characteristics of work. Automatic and mechanized welding using a plasma torch of complex devices, components, structures and pipelines made of carbon and structural steels, cast iron, non-ferrous metals and alloys. Automatic welding of complex building and technological structures operating in difficult conditions. Automatic welding in a shielded gas environment with a non-consumable electrode of hot-rolled strips of non-ferrous metals and alloys under the guidance of a more highly qualified electric welder. Fusion of defects in machine parts, mechanisms and structures. Welding of complex components, parts and tools. Reading drawings of complex welded metal structures.

Must know: installation of various automatic welding machines, semi-automatic machines, plasmatrons and power supplies; basics of electrical engineering within the scope of the work performed; methods for testing welds; brands and types of welding materials; types of defects in welds and methods for their prevention and elimination; influence of welding modes on the geometry of the weld; mechanical properties of welded metals.

Examples of work

On automatic machines:

1. Tanks of unique powerful transformers.

2. Span beams for bridge cranes with a lifting capacity of less than 30 tons.

3. Blocks of building and technological structures made of sheet metal: air heaters, scrubbers, blast furnace casings, separators, reactors, blast furnace flues, etc.

4. Columns, bunkers, beams, overpasses.

5. Head housings, traverses, bases of presses and hammers.

6. Set: frames, stringers, keels, etc.

7. The deckhouse superstructure is made of aluminum-magnesium alloys.

8. External plating, second bottom decking, main deck - welding on rack.

9. Decks, platforms.

10. Foundation slabs for walking excavator units.

11. Hermetic seams of the 1st category - microplasma welding.

Welding and fusing

1. Rolls of rolling mills, tires - welding.

2. Kits for strong ship hull bulkheads - welded.

3. Grilles, caps, distribution boxes - fusing.

On semi-automatic machines:

1. Apparatuses, vessels and containers operating without pressure.

2. Transformer tanks.

3. Fittings and boiler burner housings.

4. Cast iron parts.

5. Chambers of turbine impellers.

6. Frames of industrial furnaces and boilers.

7. Gas exhaust manifolds and pipes.

8. Columns, bunkers, rafter and sub-rafter trusses, beams, overpasses.

9. Regulating rings for hydraulic turbines.

10. Housings and axles of the header drive wheels.

11. Rotor housings with a diameter of up to 3500 mm.

12. Stop valve housings for turbines with power up to 25,000 kW.

13. Fastenings and supports for pipelines.

14. Brackets and pivot fastenings of the diesel locomotive bogie.

15. Sheets of large thickness (armor).

16. Masts, drilling and production rigs - welding in stationary conditions.

17. Longitudinal and transverse sets in volumetric sections for the second bottom flooring and for the outer cladding.

18. Lower engine crankcases.

19. Decks and platforms.

20. Foundation slabs for large electrical machines.

21. Dust-gas-air ducts, fuel supply units and electric precipitators.

22. Conveyor frames.

23. Tanks for petroleum products with a capacity of less than 1000 cubic meters. m.

24. Metal sleeves.

25. Stators of air-cooled turbogenerators.

26. Crusher beds.

27. Frames and housings of electrical machines are welded and cast.

28. Beds of large machine tools are cast iron.

29. Pipelines of external and internal water supply and heating networks - welding during installation.

30. Pipelines of external and internal low-pressure gas supply networks - welding in stationary conditions.

31. Technological pipelines of category V.

32. Car tanks.

Welding and fusing

1. Cast iron parts - fusing.

2. Chambers of turbine impellers - deposition.

3. Compressor housings, low and high pressure cylinders of air compressors - crack fusion.

4. Rails and prefabricated crosspieces - fusing of ends.

5. Beds of working stands of rolling mills - surfacing.

6. Cylinders of car blocks - fusing of shells.

§ 53. Electric welder on automatic and semi-automatic machines of the 5th category

Characteristics of work. Automatic and mechanized welding using a plasma torch of complex devices, components, structures and pipelines made of various steels, cast iron, non-ferrous metals and alloys. Automatic welding of various building and technological structures operating under dynamic and vibration loads, and structures of complex configuration. Mechanized welding using a plasmatron of complex building and technological structures operating in difficult conditions. Welding on complex devices and tilters. Automatic welding in shielding gas with a non-consumable electrode of hot-rolled strips of non-ferrous metals and alloys. Welding of defects in machine parts, mechanisms and structures. Welding of complex parts and assemblies.

Must know: electrical circuits and designs of various types of automatic welding machines, semi-automatic machines, plasmatrons and power supplies; mechanical and technological properties of welded metals, including high-alloy steels; mechanical properties of the deposited metal; technological sequence of sutures and welding mode; types of defects in welds, causes of their occurrence and methods of elimination; methods for monitoring and testing critical welds.

Examples of work

On automatic machines:

1. Beams of working platforms of open-hearth shops, structures, bunker and unloading platforms of metallurgical enterprises, crane beams for cranes under complex operating conditions, booms of walking excavators.

2. Crankshafts and propellers.

3. Gas tanks and tanks for petroleum products with a capacity of over 1000 cubic meters. m.

4. Vacuum cryogenic containers, caps, spheres and pipelines.

5. Containers and coatings are spherical and drop-shaped.

6. Ammonia synthesis columns.

7. Structures made of light aluminum-magnesium alloys.

8. Stator housings of large turbogenerators with hydrogen and hydrogen-water cooling.

9. Tanks and structures made of double-layer steel and other bimetals.

10. Felling submarines and other structures made of low-magnetic steels.

11. Beds, frames and other components of forging and pressing equipment.

12. Aircraft landing gear struts and cylinders.

13. Span structures of metal bridges.

14. Assembly joints of hull structures operating under pressure, made of special steels.

15. Mounting joints of aluminum alloy housings.

16. Fixed joints of pipes and special structures made of stainless, titanium and other alloys in shipbuilding.

17. Technological pipelines of I - IV categories (groups), as well as steam and water pipelines of I - IV categories.

18. Large frames.

On semi-automatic machines:

1. Apparatuses and vessels made of carbon and alloy steels operating under pressure, and alloy steels operating without pressure.

2. Bearing reinforcement reinforced concrete structures: foundations, columns, floors.

3. Tanks of unique powerful transformers.

4. Beams and traverses of crane trolleys and balancers.

5. Span beams for bridge cranes with a lifting capacity of less than 30 tons.

6. Center beams, pivot beams, buffer beams, frames of locomotive and wagon bogies.

7. Boiler drums with pressure up to 4.0 MPa (38.7 atm.).

8. Blocks of building and technological structures made of sheet metal: air heaters, scrubbers, blast furnace casings, separators, reactors, blast furnace flues.

9. Cylinder blocks and water manifolds of diesel engines.

10. Gas tanks and tanks for petroleum products with a volume of 5000 cubic meters. m or more - welding in workshop conditions.

11. Gas and oil product pipelines - welding on a rack.

12. Caissons for open-hearth furnaces operating at high temperatures.

13. Columns, bunkers, rafter and sub-rafter trusses, beams, overpasses.

14. Structures of radio masts, television towers and power line supports - welding in stationary conditions.

15. Head housings, traverses, bases and other complex components of presses and hammers.

16. Rotor housings with a diameter of over 3500 mm.

17. Stop valve housings for turbines with power over 25,000 kW.

18. Housings of cutters, loading machines, coal combines and mine electric locomotives.

19. Covers, stators and lining of hydraulic turbine blades.

20. Propeller blades - welding to the hub and welding of attachments.

21. Masts, drilling and production derricks.

22. Bases for drilling rigs and three-diesel drives made of high-alloy drill pipes.

23. Foundation slabs for a walking excavator unit.

24. Hot-rolled strips of non-ferrous metals and alloys.

25. Frames and components of cars, diesel engines and agricultural machines.

26. Kingpin and diesel locomotive frames.

27. Tanks for petroleum products with a capacity of 1000 and less than 5000 cubic meters. m.

28. Metal sleeves.

29. Joints of reinforcement outlets of elements of load-bearing reinforced concrete structures.

30. Tubular elements of steam boilers with pressure up to 4.0 MPa (38.7 atm.).

31. Pipelines of external and internal low-pressure gas supply networks.

32. Pipelines of external and internal gas supply networks of medium and high pressure - welding in stationary conditions.

33. Pipelines technological III and IV categories (groups), as well as steam and water pipelines of III and IV categories.

34. Tires, tapes, expansion joints for them made of non-ferrous metals.

Welding and fusing

1. Charging devices for blast furnaces, rolls of rolling mills - surfacing.

2. Propellers, turbine blades, engine cylinder blocks - fusing defects.

§ 54. Electric welder on automatic and semi-automatic machines of the 6th category

Characteristics of work. Automatic and mechanized welding using a plasma torch of complex devices, components, structures and pipelines made of various steels, cast iron, non-ferrous metals and alloys, including titanium, on universal multi-arc and multi-electrode automatic and semi-automatic machines, as well as on automatic machines equipped with television, photoelectronic and other special devices, automatic manipulators (robots). Mechanized welding using a plasmatron of building and technological structures operating under dynamic and vibration loads, and structures of complex configuration when performing welds in the ceiling position and on a vertical plane. Welding of experimental structures made of metals and alloys with limited weldability. Welding of structures in block design in all spatial positions of the weld.

Must know: designs of electric welding machines, semi-automatic machines, plasmatrons and machines; electrical and kinematic diagrams of complex automatic machines, plasma torches and machines, the causes of their most likely malfunctions, ways to eliminate them; control methods, methods and test methods welded joints critical structures; basic design of electronic control circuits; rules for training robots and working with robotic systems; types of alloys, their welding and mechanical properties; types of corrosion and factors causing it; main types of heat treatment of welded joints; basics of weld metallography.

Examples of work

On semi-automatic machines:

1. Beams of working platforms of open-hearth shops, structures of bunkers and unloading platforms of metallurgical enterprises, crane beams for heavy-duty cranes, booms of walking excavators.

2. Span beams for bridge cranes with a lifting capacity of 30 tons and above.

3. Boiler drums with pressure over 4.0 MPa (38.7 atm.).

4. Gas tanks and tanks for petroleum products with a volume of 5000 cubic meters. m or more - welding during installation.

5. Main gas and oil product pipelines - welding during installation and during the elimination of breakthroughs.

6. Vacuum and cryogenic containers, caps, spheres and pipelines.

7. Containers and coatings are spherical and drop-shaped.

8. Ammonia synthesis columns.

9. Designs of radio masts, television towers and power line supports.

10. Steam turbine boxes.

11. Stator housings of large turbogenerators with hydrogen and hydrogen-water cooling.

12. Heavy housings diesel engines and presses.

13. Ship steam boilers.

14. Paws and rustles of drill bits, drilling steam conductors.

15. Pipeline piping of oil and gas wells and edge flooding wells.

16. Tanks and structures made of two-layer steel and other bimetals.

17. Reinforcement bars for reinforced concrete structures in split forms.

18. Span structures of metal and reinforced concrete bridges.

19. Tubular elements of steam boilers with pressure over 4.0 MPa (38.7 atm.).

20. Pressure pipelines, spiral chambers and impeller chambers of hydroelectric turbines.

21. Pipelines for external gas supply networks of medium and high pressure - welding during installation.

22. Technological pipelines of categories I and II (groups), as well as steam and water pipelines of categories I and II.

Welding and fusing

1. Drill pipe joints and couplings - double seam welding.

2. Working wheels of gas turbine compressors, steam turbines, powerful blowers - welding of blades and paddles.

The program is aimed at obtaining additional vocational education and new competencies in the field of electric welding work on automatic and semi-automatic machines.

Course program

As part of the training you will learn:

1. Socio-economic foundations of the profession of electric welder.
2. Labor protection and fire safety requirements when carrying out electric welding work.
3. General technology production of electric welding work on automatic and semi-automatic machines.
4. Types of equipment for electric welding work and rules of its operation.
5. Electric welding technologies.
6. Rules for product quality control.
7. The procedure for reading drawings of medium complexity and complex metal structures.
8. Technologies for surfacing parts and assemblies of varying degrees of complexity.

Document upon completion of training

Students who successfully complete the program “Electric welder on automatic and semi-automatic machines” receive a Certificate of advanced training in the amount of 252 hours.

Why is it so important to get trained?

According to Part No. 1 of Issue No. 2 of the Unified Tariff and Qualification Directory of Work and Professions of Workers, approved by Decree of the Ministry of Labor of the Russian Federation of November 15, 1999 No. 45, an electric welder performing work on automatic and semi-automatic machines must have the appropriate specialized education.

According to the Code of Administrative Offenses of the Russian Federation, a fine is imposed:

According to paragraph 3 of Article 5.27.1 of the Code of Administrative Offenses, an employee’s permission to perform labor responsibilities without undergoing appropriate training and knowledge testing, entails a fine:

For officials in the amount of 15,000 - 25,000 rubles

For persons carrying out entrepreneurial activities without forming a legal entity, in the amount of 15,000 - 25,000 rubles

On legal entities in the amount of 110,000 - 130,000 rubles

Legislation

• Resolution of the Ministry of Labor of the Russian Federation dated November 15, 1999 No. 45
• Article 5.27.1 of the Code of Administrative Offenses

Attek provides discounts when ordering:

• 2 listeners - 3%
• 3 listeners - 5%
• 5 or more listeners - 10%
• If you apply again, the discount will be 15%

Golyanov Andrey Alekseevich

Education: Civil Engineering Institute of Oryol State Agrarian University, specialty “Heat supply and heating engineering.” Graduated from graduate school at the Institute of Thermophysics named after. S.S. Kutateladze SB RAS. Candidate technical sciences. He has more than twenty years of teaching experience in disciplines related to heat supply.

Holder of three patents for inventions of heat supply mechanisms, one of which is registered abroad. He has been collaborating with our center as a freelance teacher since 2014.

Suvorov Mikhail Petrovich

Education: Perm College of Industrial and Information Technologies, specialty “Welding production”. After graduation, he worked in more than ten large manufacturing companies, including at hazardous industrial sites and in the Far North.

He has a NAKS Level III welder certificate. Received an industrial safety certificate in area B.3.9. Awarded the “Honorary Welder of Russia” badge. In our center he has been conducting advanced training courses for specialists in the field of welding as a freelance teacher since 2015.

The occupational safety course included a topic on the effects of the welding arc on the visual organs. I learned useful and important information, I will take it into account. Lectures are given in a clear, accessible language, and the teachers are very knowledgeable about the material.

Alexander Vysotin

We studied the main documents and standards on labor protection during electric welding work. The material is presented in doses and has time to be absorbed. The courses turned out to be productive and, of course, necessary. The knowledge gained will be useful in your work.

Vladimir Ivanovich

Completed a training course on electrical safety during welding. The teacher lectured very competently, focusing on particularly important points. All the knowledge I acquired will be useful in my work. I'm sure of it. Thank you.

Petr Sarov

Very good organization courses. It was necessary to learn without interrupting the work process. The organizers arranged everything in the best possible way. Got a lot useful information on the work of gas cutters and gas welders.

Roman Vasilievich

The topic of replacing harmful materials for welding with less toxic ones worries welders and managers. During the course, the topic was covered in a deep and interesting way. The teacher talked about innovative materials and their qualities. We will use it.

Maxim Petrovich

Studied courses for gas welders. I listened to lectures on the proper operation of equipment for electric welding and gas welding. All material will be useful in further work. Simple language, interesting presentation, content.

Nikolay Erofeenko

I decided to get an additional profession as a welder. Signed up for courses. After graduation I received a certificate. I liked the courses: informative material, high level of teaching staff. Thank you very much to the organizers.

Sergey Lipatov

I have been working as a welder for a long time, but I do not have permission to carry out gas welding work. I signed up for courses and completed the training. Received admission after passing all the necessary exams. It was not difficult because the lectures were given by good teachers.

Fedor Velikov

I would like to express my gratitude to the teachers of the manual welding course. They managed to organize educational process so that in a short period of time we learned a large amount of complex material. It was interesting, thank you.

Yuri Tsiklov

I liked the lecture on safety precautions during welding. The teacher explained everything clearly and gave examples. Without a doubt, it will come in handy at work. I liked the organization as a whole: everything was thought out and taken into account. Quality training.

Grigory Leonidovich

Tests for final qualifying exams for group 351.

Specialty: 3-36 01 51 Welding technology.

Qualification: 3-36 01 51-54 electric welder on automatic and

Semi-automatic machines of the 3rd category.

Special technology “Electric welder on automatic and semi-automatic machines” 3 categories.

Question 1. What color are carbon dioxide cylinders?

A. white with red “Carbon Dioxide” inscription;

b. blue with black inscription “Carbon Dioxide”;

V. black with yellow “Carbon Dioxide” inscription.

Question 2: What pressure indicates a full argon cylinder?

A. 147 kgf/cm²;

Question 3. What is a pull-type feeder in a semi-automatic machine?

A. The feeding mechanism is located in the burner handle. The welding wire is drawn either from a reel in the body of the semi-automatic machine, or the reel (usually very small) is placed in the handle;

b. the mechanism pushes the wire into the sleeve (when welding with thin, aluminum or flux-cored wire, jams are possible inside the sleeve);

V. This machine has two synchronous feeders. One pushes the filler wire out of the machine body, and the second pulls it to the welding site

Question 4. What is included in the protective gas supply system on a semi-automatic device?

A. cylinder, gas heater (for CO₂), gas reducer, gas mixer, gas hoses, solenoid valve;

b. cylinder, gas reducer, gas mixer, gas hoses;

V. cylinder, gas heater, gas mixer, gas hoses.

A. Lв (~2...10 mm);

b. Lв (~8...25 mm);

V. Lв (~10...40 mm).

Question 6. The sequence of switching on the parts and mechanisms of the semi-automatic welding equipment:

A. supply of shielding gas, switching on the arc power source, supply of electrode wire, initiation of the arc, movement of the apparatus at welding speed;

b. turning on the arc power source, feeding the electrode wire, moving the machine at welding speed;

V. supply of shielding gas, supply of electrode wire, initiation of the arc, movement of the apparatus at welding speed.

Question 7. What are the different electrode wire feeding systems in semi-automatic machines?

A. pushing, pulling, pulling-pushing types;

b. pushing type;

V. pulling and pushing types.

Question 8. Which wire feeding system in semi-automatic devices is the most common, is characterized by simplicity and low weight of the torch, but limits the length of the hoses to 3 m?

A. pushing type;

b. pulling type;

V. push-pull type.

Question.9. What is the maximum length of hoses allowed in portable semi-automatic machines?

Question 10. What measures are used with a welding machine to prevent flattening of the flux-cored wire?

A. two pairs of feed rollers are used;

b. use one pair of rollers;

V. use a pipe instead of a hose to feed wire.

Question 11. Name the replaceable, wearable parts of the semi-automatic burner.

A. conductor (tip), nozzle.

b. conductor (tip);

A. variable;

b. constant straight polarity;

V. constant reverse polarity.

Question 13. What is affected by an increase in arc length and, accordingly, arc voltage?

A. the width and depth of the seam increases;

b. the width of the seam increases and the depth of its penetration decreases;

V. the width and depth of the seam decreases.

Question 14. What effect does tilting the electrode at a backward angle of 5-10° have on the penetration depth and quality of the seam?

A. It is more difficult to observe the formation of a seam, but it is better to observe the edges being welded and guide the electrode exactly along the gaps. At the same time, the width of the roller increases, and the depth of penetration decreases;

b. visibility of the welding zone improves, penetration depth increases and the deposited metal becomes more dense;

V. The visibility of the welding zone deteriorates, the depth of penetration and the width of the bead increases.

Question 15. What number is the current-carrying tip?

A. four;

Question 16: What does the MIG (Metal Inert Gas) welding machine notation mean?

A. metal welding is performed automatically;

Question 17. What does the MAG (Metal Active Gas) marking on a welding machine mean?

A. metal welding is performed semi-automatically;

b. the welding process occurs under the influence of an inert gas (argon or another mixture of gases);

V. welding metal in active gas (carbon dioxide).

A. in mass and serial production of products with sufficiently long, straight and circular seams;

b. in serial and mass production for welding products with curved seams, seams of short length;

V. in conditions of small-scale and individual production for welding products with long, straight seams.

Question 19. What seam is shown in the drawing?

A. butt;

b. angular;

V. T-bar;

g. overlap.

Question 20. What mechanism in the unwinding device of a semi-automatic welding machine is designed so that when the welding current is turned off and the feed motor stops, the wire does not unwind from the cassette and does not get tangled?

A. two rollers;

b. braking mechanism;

V. shutdown mechanism electric current.

Question 21. The gas nozzle of the burner is made of...

V. aluminum

Question 22. A weld is called:

A. a section of a welded joint formed as a result of crystallization of the molten metal of the weld pool;

b. a section of a welded joint formed as a result of plastic deformation of the filler metal;

V. a section of a welded joint formed as a result of crystallization of the electrode.

Question 23. A butt joint is called:

Question 24. From the following processes, name the chemical processes occurring in the weld pool:

a.electrical processes;

b. contamination of the weld metal with harmful impurities;

V. oxidation of weld metal;

d. deoxidation of the weld metal;

d. air ionization;

e. refining the weld metal;

and. thermionic emission.

Question 25: In which area of ​​the weld do cracks often occur?

A. fusion zone;

b. thermally affected zone;

in the weld metal zone.

Question 26. Arc welding is carried out under the influence of:

b. gas flame;

V. electric arc.

Question 27. A T-joint is called:

A. connection of two parts located at an angle to each other and welded at the junction of their edges;

b. a connection in which the edges of the parts to be welded are located parallel to one another and superimposed on each other;

V. connection of parts located in the same plane or on the same surface;

d. a connection in which another part is adjacent to the surface of one part at an angle, the end of which is adjacent to the mating surface and welded to it.

Question 28. How do welding currents differ in magnitude during tack welding and welding?

A. the current should be 20-30% greater than the welding current;

b. the current should be 10-20% greater than the welding current;

V. the current should be 20-30% less;

d. the current remains unchanged.

Question 29. In this connection, the elements to be welded are located in the same plane or on the same surface. What type of connection is this?

A. butt;

b. corner;

V. T-bar;

g. overlap.

Question 30. The seams of welded joints are straight, circular, curved and classified according to:

b. position;

V. configurations;

g. length.

Question 31. Depending on what characteristics of the connection are the pitch and size of the tacks set?

A. depending on the length of the connection;

b. depending on the type of connection;

V. depending on the type of seam;

g. depending on the thickness of the connection.

Question 32. Assembly using tack welding is used for structures made of sheets up to...

Question 33. Change in the shape and size of a product under the influence of external and inner strength called..

A. deformation;

b. tension;

V. strength;

d. by stretching.

Question 34. The height of the welding station cabin must be...

A. not less than 1.5 m;

b. not less than 2m;

V. at least 4m.

Question 35. Protective coatings are used for:

A. to form a small amount of slag;

b. ionization of the gas gap;

V. protecting molten metal from air;

d. protection from metal splashes.

Question 36. When welding, the part changes its dimensions due to:

A. uneven heating;

b. uneven gravity forces;

V. uneven pressure;

d. uneven friction forces.

Question 37. When the welding current is low, there are:

A. burns;

b. undercuts;

V. lack of penetration;

Question 38. A weld seam longer than 1000 mm is welded:

A. from ends to middle;

b. from the middle to the ends;

V. in a reverse step manner;

g. on the passage.

Question 39. A small gap in structural elements leads to:

A. pore formation;

b. burns;

V. lack of cooking;

g. cracks.

Question 40. Which area of ​​the welding arc has the highest temperature:

A. anode region;

b. cathode region;

V. arc pillar;

Question 41. A large gap in parts leads to:

A. undercuts;

b. lack of cooking;

V. burns;

g. cracks.

Question 42. To reduce deformations it is necessary:

A. preliminary deformation;

b. associated deformation;

V. reverse deformation;

d. gradual deformation.

Question 43. Which definition of a welding arc is most correct?

A. electric arc discharge at the site of a circuit break.

b. electric arc discharge in the interelectrode space in a partially ionized mixture of metal vapor, gas, electrode components, coatings, fluxes.

V. Electric arc discharge in a mixture of atoms and air molecules.

Question 44. What mode parameters determine the power of the welding arc?

A. electrical circuit resistance;

b. arc voltage value;

V. the magnitude of the welding current and arc voltage.

Question 45. What should be the current value when arc welding in a vertical position compared to the current value when welding in a lower position?

A. the current value when welding in a vertical position should be less than when welding in a lower position;

b. the current value when welding in a vertical position should be greater than when welding in a lower position;

V. the magnitude of the current does not depend on the position of the weld in space.

Question 46. For what class of steels are electrodes of types E38, E42, E42A, E46, E46A used for welding?

A. for welding heat-resistant low-alloy steels;

b. for welding carbon steels;

V. for welding high-alloy steels.

A. variable;

A. variable;

b. direct current of reverse polarity;

V. direct current of direct polarity.

Question 49. What can contribute to the formation of burn-through during welding?

A. small amount of blunting of the edges of parts with a V-shaped groove;

b. no gap in the joint assembled for welding;

V. long arc welding.

Question 50. Indicate whether tacks that have unacceptable external defects (cracks, external pores, etc.) based on the results of visual inspection should be removed?

A. follows;

b. should not be done if the tack is completely overcooked during welding;

V. Should be removed only if a crack is detected in the tack.

Question 51. Which of the following factors most influences the width of the seam in manual arc welding?

A. transverse vibrations of the electrode;

b. arc voltage;

V. welding current value.

Question 52: For what purpose is the electrode tip uncoated?

A. to ensure the supply of current to the electrode;

b. in order to save coverage;

V. to determine the brand of electrode.

Question 53. Which brands of electrodes have a rutile coating?

A. UONII 13/45, SM-11;

b. ANO-3; ANO-6. MP-3;

V. ANO-7, ANO-8.

Question 54. Indicate the reasons for the formation of a crater.

A. a crater is formed at the point where gases are released during the welding process;

b. due to a sharp withdrawal of the arc from the weld pool;

V. due to significant shrinkage of the metal during crystallization.

Question 55. For what purpose is a coating applied to the electrode rod?

A. to stabilize the arc, alloy the weld metal and protect the weld pool from the ingress of gases from the air and the formation of a seam;

b. to prevent the rod from getting moisture;

V. To reduce the likelihood of the formation of both cold and hot cracks in the weld metal.

Question 56. How does the length of the arc affect the stability of its combustion?

A. with increasing arc length, combustion stability decreases;

b. with increasing arc length, combustion stability increases;

V. has no practical impact.

A. it is necessary to protect the welding site from the wind;

b. it is necessary to provide protection in the form of a canopy from the effects of precipitation;

V. must be protected from wind, drafts and precipitation.

Question 58. How does an increase in current during manual arc welding affect the geometric dimensions of the weld?

A. the penetration depth decreases and the height of the seam reinforcement increases;

b. the penetration depth and height of the weld reinforcement increases;

V. the height of the weld reinforcement decreases and the depth of penetration increases.

Question 59: Does the arc voltage depend on its length in manual arc welding?

A. depends;

b. does not depend;

V. Depends on low and high welding current values.

Question 60. For what purpose are electrodes calcined?

A. to remove sulfur and phosphorus;

b. to increase the strength of the electrode coating;

V. to remove moisture from the coating.

Question 61. Which of the following technology violations can lead to porosity of seams?

A. poor cleaning of edges before welding to remove rust and traces of grease;

b. high current when welding;

V. small gap at the joint.

Question 62. Why does the amount of deformation of the welded metal depend to a greater extent?

A. from the tendency to harden;

b. from uneven heating;

V. on the brand of electrode used for welding.

Question 63. Indicate the size of the gap between the welded edges of sheet elements 5 mm thick in accordance with GOST 5264-80?

Question 64. Specify the symbol for welded joints.

A. C-butt, U-corner, T-Tee, H-lap, the letter and number following it are the symbol of the welded joint;

b. C-butt, U-corner, H-lap. T-spot welding, the numbers after the letters indicate the method and method of welding;

V. C-butt, U-corner, T-Tee, P-ceiling seam, the numbers after the letters indicate the methods and scope of control.

Question 65: Which of the following most affects the weldability of metals?

A. chemical composition of the metal;

b. mechanical properties of metal;

V. electrical conductivity of the metal.

Question 66. How does the volume of metal deposited in one pass affect the magnitude of deformations?

A. increases residual deformations of welded structures;

b. reduces residual deformations of welded structures;

V. does not affect residual deformations of welded structures.

Question 67. At what point should defects in welded joints subject to subsequent heat treatment be corrected?

A. before heat treatment;

b. in agreement with the parent materials science organization;

V. after heat treatment.

Question 68: Which of the following affects the choice of electrode diameter and welding current?

A. brand and thickness of the metal being welded;

b. temperature environment;

V. type of welding machine.

Question 69. Indicate the correct division of electrodes by type of coating according to

b. oxidizing, reducing and sautéing coatings;

V. acidic, basic, cellulose, rutile coatings.

Question 70. Which of the following causes the appearance of slag inclusions?

A. poor protection of the welding site from wind during installation;

b. traces of moisture and oil on the welded edges;

V. low quality of electrode coating during manual arc welding.

Question 71. Specify the requirements for the quality of surface preparation of edges before welding.

A. It is allowed to use metal in the as-delivered condition;

b. the interface between the edges of the part and the area adjacent to them must be clean, free of scale, rust, moisture, oil, grease and dirt;

V. the interface between the edges of the part and the area adjacent to them must be free of traces of moisture.

Question 72. What does the letter “E” and the numbers following it mean in the marking of electrodes?

A. electrode brand and development number;

b. manufacturer and coating number;

V. type of electrode and guaranteed tensile strength of the metal deposited by them in kgf/mm².

Question 73. Do the type and polarity of the current affect the amount of penetration during manual arc welding?

A. influences insignificantly;

b. does not affect;

V. influences significantly.

Question 74. What defects can occur in a weld if the edge blunting exceeds the recommended value?

A. Possible lack of penetration of the root of the seam;

b. cold cracks may appear;

V. Porosity may appear.

Question 75. What does the letter “A” mean in the marking of electrode types, for example E42A?

A. reduced content of alloying elements;

b. reduced carbon content;

V. increased plastic properties of the deposited metal.

Question 76. Electrodes with a basic coating are marked with the letter:

Question 77. Indicate the letter designation of the type of electrode coating.

A. A-acidic, B-basic, C-cellulose, R-rutile, P-other types;

b. K-acidic, O-basic, OR-organic, RT-rutile, P-other types;

V. K-acidic, O-basic, C-cellulose, R-rutile, P-other types.

Question 78. What is the main role of gas-forming substances in the electrode coating?

A. neutralize the harmful effects of sulfur and phosphorus in the weld metal;

b. increase the ductility of the deposited metal;

V. protect the molten metal of the weld from interaction with air.

Question 79. What is controlled during visual inspection?

A. pores, non-metallic inclusions;

b. internal cracks, lack of fusion;

V. shape and size of the seam, surface cracks and pores, undercuts.

Question 80. What are the main parameters that characterize the manual arc welding mode?

A. type of current, polarity, thickness of the metal being welded;

b. welding current value, electrode diameter, type of current and polarity;

V. arc voltage, grade of metal being welded.

Question 81. Indicate the role of slag-forming substances in the electrode coating?

A. protect molten metal from interaction with air;

b. alloy the deposited metal;

V. protect molten metal from splashing.

Question 82: Which of the following steels is more prone to hot cracking?

A. steel with carbon content from 0.25% to 0.35%;

Question 83. Which of the non-consumable electrodes can only operate in an inert gas environment?

A. tungsten;

b. graphite;

V. coal.

Question 84. What seam is shown in the drawing?

A. end to end;

b. T-bar;

V. angular.

g. overlap.

Question 85. What methods does destructive testing of welded joints include?

A. visual and measuring control;

b. ultrasonic testing;

V. bending angle tests.

Question 86. What is the role of binding components in the electrode coating?

A. alloy the weld metal;

b. increase the mechanical properties of the weld metal;

V. provide strength and plasticity of the coating mass on the electrode rod.

Question 87. What should be monitored when checking the condition and dimensions of welding electrodes?

A. the length of the uncovered part of the electrode;

b. electrode length;

V. the diameter of the metal rod, the thickness of the coating and the uniformity of its application.

Question 88. What is the name of the polarity in which the electrode is connected to the negative pole of the arc power source, and the welding object is connected to the positive?

A. direct;

b. reverse

Question 89. What elements contribute to the formation of hot cracks in the weld metal?

A. sulfur, phosphorus, silicon and hydrogen;

b. aluminum, copper, nickel;

V. carbon, oxygen, silicon.

Question 90. What is the purpose of blunting the cutting edges at the root?

A. to reduce the proportion of base metal in the weld metal;

b. so as not to burn the metal;

V. in order to save electrode metal.

Question 91. What does the double letter “AA” at the end of the symbol for welding wire Sv-08 AA indicate?

A. for high sulfur content;

b. for increased phosphorus content;

V. to higher metal purity.

Question 92. What are the lengths of seams?

A. short, medium, long;

b. chess, chain;

V. continuous, intermittent.

Question 93. What types of welds are there based on the amount of deposited metal?

A. reinforced;

b. normal;

V. strengthened, normal, weakened.

Question 94. What effect does a welding arc burn between two electrodes?

A. spicy;

b. indirect;

V. combined.

Question 95. How many ways are there to ignite a welding arc?

Question 96. Which seams are welded at high currents?

A. vertical;

b. horizontal;

V. lower ones.

Question 97. Which of the proposed types of welding allows you to use the most high degree mechanization and automation of the process?

A. manual arc welding;

b. gas welding;

V. submerged arc welding;

d. welding in shielding gases.

Question 98. Is it possible to weld products by submerged arc?

b. no, preliminary welding of the weld root or the presence of a rigid supporting surface is necessary;

V. there is no difference, you can weld both on weight and with linings.

Question 99. What is used to melt the electrode metal during electroslag welding?

A. compressed electric arc;

b. heat released when electric current passes through a slag bath;

V. electrical discharge.

Question 100. At what current is automatic submerged arc welding of critical structures performed?

A. constant direct polarity;;;

b. constant reverse polarity;

V. variable

Question 101. What height of the bulk flux layer should be for high-quality protection of the weld from oxygen and nitrogen when welding under a layer of flux?

A. up to 5mm;;

b. from 10 to 20mm;

V. from 30 to 40mm.

Question 102. What is the heat source in plasma welding?

A. electric arc;

b. compressed electric arc;

V. electric discharge.

Question 103. The choice of wire grade for arc welding with a consumable electrode in active gases is determined by:

A. method of smelting welded metal

b. chemical composition and mechanical properties of the metal being welded

V. conditions in which the welded structure operates

d. position of welds in space

Question 104. What welding wire is used when welding low-carbon steel St 3sp in carbon dioxide:

b. Sv-08G2S

Question 105. For consumable electrode arc welding of low-alloy steel 09G2S, to improve the quality of the weld metal and welding productivity, it is preferable to use:

V. carbon dioxide

d. a mixture of argon and carbon dioxide

Question 106. What characterizes the process of pulsed welding:

A. a process in which the welding current changes according to a certain law over time with a constant frequency

b. a process in which welding current is supplied at a frequency and amplitude set by appropriate regulators

V. a process in which the welding material is supplied into the weld pool in pulses due to a special drive

Question 107. What is the duty cycle (on period) of a welding source:

A. the ratio of the arc operating (burning) time to the total operating time, measured after 10 minutes, expressed as a percentage

b. the ratio of the total operating time of the welding source to the operating (burning) time of the arc, expressed as a percentage

V. total operating time of the welding source per shift

Question 108. Depending on what the grade (number) of the filter glass of a welder’s protective mask is selected:

A. on the strength of the welding current

b. from the material being welded

V. depending on the brand of wire used

from shielding gas

Question 109. At what current during welding of low-alloy steels with Sv-08G2S wire Ø1.0 mm does jet transfer occur:

Question 110. The diameter of the welding wire is selected depending on:

A. on the thickness of the metal being welded

b. on the strength of the welding current

V. on the position of the weld in space

g. from shielding gas consumption

Question 111. Losses of electrode metal when welding with a consumable electrode in a protective mixture of 82%Ar + 18%CO 2 compared to welding in CO 2 shielding gas will be:

A. less

b. more

V. much more

Question 112. What does the following technical characteristic of a welding source indicate - a welding current of 250 A at 60% duty cycle:

A. welding at currents of 250 A should be carried out with a duty cycle (on period) equal to 60%

b. welding should be performed at currents up to 250 A only 60% of the working time per shift

V. welding should be carried out at currents equal to 60% of 250 A

Question 113. In what case will the penetration depth be greater (under all other identical conditions) when welding vertical seams:

A. from bottom to top

b. top down

Question 114. When arc welding with a consumable electrode in a carbon dioxide environment, with increasing arc length, the penetration depth is:

A. decreases

b. increases

Question 115. Mechanized welding of low-carbon steel up to 3 mm thick in the lower position should be carried out:

A. angle forward

b. angle back

Question 116. When the arc is ignited (during the welding process), the electrode wire rests against the base material - what needs to be done:

A. reduce (increase) offset

b. improve contact at the tip

V. reduce wire feed

d. increase voltage

Question 117. How does the volume of metal sent for cutting in one pass affect the amount of deformation of the welded products:

A. increases deformation with increasing volume of deposited metal

b. increases deformation with decreasing volume of deposited metal

V. no effect

d. reduces deformation with increasing volume of deposited metal

Question 118. With what form of edge preparation will the level of deformation be less when welding joints of sheet structures made of low-carbon steels:

A. with X-shaped

b. with U-shape

V. with V-shape

Question 119. How does heating the product during the welding process affect the magnitude of welding deformations:

A. increases product deformation

b. reduces product deformation

V. no effect

Question 120. Testing of welded seams with a “chalk-kerasin test” is carried out to check for:

A. impenetrability

b. presence of internal defects

V. presence of surface defects

d. strength

Question 121. What measures must be taken to prevent the formation of cold cracks and ensure the production of high-quality welds when welding medium-carbon steels:

A. welding is performed with wire with a diameter of 2 mm

b. preheating and delayed cooling

V. perform welding at high currents

Question 122. What electrode wire extension must be maintained when welding with wire with a diameter of 1.6 mm:

A. 10–15 mm

b. 20 – 30 mm

V. 15 – 20 mm

g. 15 – 25 mm

Question 123. The most dangerous and unacceptable defects in welds:

b. cracks

V. undercuts

d. slag inclusions

Question 124. What does the letter “A” mean in steel grade 30KhGSA:

A. steel for especially critical structures

d. reduced oxygen content in steel

Question 125. What is the conventional digital designation of the welding method - arc welding with a metal (consumable) electrode in active gases (according to ISO 4063-78 and DNAOP 0.00-1.16-96):

Question 126. Who invented manual carbon arc welding?

A. V.V. Petrov;

b. N.N. Benardos;

V. N.G. Slavyanov.

geo. Paton;

Question 127. Who discovered the electric arc?

A. N.N. Benardos;

b. V.V. Petrov;

V. N.G. Slovyanov.

Mr. E.O. Paton;

Question 128. In what year was the electric arc discovered?

Question 129. When burning an arc and melting metals, there is no need to protect the weld pool from:

A. oxygen.

b. argon.

V. hydrogen.

Question 130. According to the method of protecting the weld pool, arc welding does not exist

A. in protective gas.

b. under gumboil.

V. in flammable gas.

in a vacuum.

Question 131. Is it possible to tack with another type of electrodes?

V. undesirable.

g. necessarily.

Question 132. When reducing the diameter of the electrode, the width of the weld bead:

a.decreases

b. increases.

V. equal to zero.

g. does not change.

Question 133. When the electrode moves slowly

A. no crater is formed, the base metal does not bond well to the weld.

b. the weld seam is narrow.

V. possible overheating and burnout, undercuts along the edges, the seam is thick and wide

d. the weld is convex, a crater is formed.

Question 134. When excessively fast movement electrode

and the weld seam is wide, and undercuts are eliminated.

b a crater does not form, the base metal does not connect well to the weld

V. the weld is convex, creating a crater.

d. the depth of penetration and the height of the convexity increase, the width of the seam decreases.

Question 135. Oscillatory movements of the electrode along the axis of the seam are necessary

A. for better penetration of the weld root.

b. to warm up the edges and obtain the required seam width

V. for applying a seam in one pass.

d. to obtain a high-quality seam surface.

Question 136. Most high quality seams are obtained by welding

a.in the ceiling position.

b.in a vertical position.

c.in a horizontal position.

d.in the down position

Question 137. What does the abbreviation mean? MMA(Manual Metal Arc)?

A. manual arc welding with a non-consumable electrode in an inert protective gas environment

b. manual arc welding with piece (coated) electrodes

V. arc welding with a consumable metal electrode (wire) in an inert shielding gas with automatic feed of filler wire

Question 138. What does the abbreviation mean? TIG(Tungsten Inert Gas)?

A. automatic arc welding with a metal electrode (wire) in a protective gas environment

Question 139. What does the abbreviation mean? MIG(Metal Inert Gas)

A. arc welding with a consumable metal electrode (wire) in an inert shielding gas with automatic feed of filler wire

b. manual arc welding with a non-consumable electrode in an inert protective gas environment

V. arc welding with a consumable metal electrode (wire) in an active shielding gas with automatic supply of filler wire

Question 140. What does the abbreviation mean? MAG ( Metal Active Gas)?

A. arc welding with a consumable metal electrode (wire) in an active shielding gas with automatic supply of filler wire

b. arc welding with a consumable metal electrode (wire) in an inert shielding gas with automatic feed of filler wire

V. automatic arc welding with a metal electrode (wire) under a layer of flux.

Question 141 . It's called welding …

A . Welding is the property of parts to form a permanent connection by local heating, with or without the use of pressure.

b. Welding is process obtaining permanent connections by establishing interatomic bonds between the parts being welded when they are heated or plastically deformed, or the combined action of both.

B. Welding is the ability of materials to form a permanent joint by melting the base metal and joining the parts to be joined using pressure.

Question 142. When is fine-droplet metal transfer observed during gas-shielded welding?

A. at low values ​​of welding current density;

b. at average values ​​of welding current density;

V. at high values ​​of welding current density.

Question 143. What is the purpose of dulling the edges of parts?

A. to facilitate penetration of the root of the seam;

b. to ensure penetration of the part;

V. to avoid burns.

Question 144. In Fig. pictured:

1.hardness distribution in the heat-affected zone of the weld;

2.temperature distribution in the thermally affected zone;

Question 145. What sources of thermal energy are used in plasma welding?

1.electric arc

2. jet of heated to high temperatures gas passed through an electric arc;

3.radial energy.

Question 146. The figure shows a diagram

1.manual arc welding;

2.laser welding;

3.Automatic arc welding.

Question 147. The figure shows a diagram...

1. welding in shielding gases with a non-consumable electrode with straight polarity;

2. welding in shielding gases with a non-consumable electrode with reverse polarity;

3.automatic submerged arc welding.

Question 148. Arc welding is carried out under the influence of:

2. electric arc;

3. gas flame.

Question 149. In which zone is the metal most brittle?

1.fusion zone;

2.thermal affected zone;

3.weld metal zone.

Question 150. The thermal class of welding does not apply

1.electroslag welding.

2.arc welding.

3.forge welding.

Question 151. Does not belong to the thermomechanical class of welding

1.diffusion welding.

2.forge welding.

3.friction welding.

Question 152. Does not belong to the mechanical welding class

1.explosion welding.

2.forge welding.

3.friction welding.

Question 153. When burning an arc and melting metals, there is no need to protect the weld pool from:

1.oxygen.

3.hydrogen.

Question 154. Non-consumable electrodes are made in the form of (indicate the wrong answer)

1.tungsten rods.

2.carbon rods.

3.titanium rods.

Question 155. Which of the following electrodes are non-consumable?

1.steel rods.

2.tungsten rods.

3.copper rods.

4.titanium rods.

Question 156. According to the method of protecting the weld pool, arc welding does not exist

1.in protective gas.

2. submerged.

3.in flammable gas.

4.in a vacuum.

Question 157. What is not the equipment of a welding station?

1.electrode holder

2.welding cable

3.protective mask

4.power supply

Question 158. The equipment of the welding station includes

1.protective mat

2.devices for welding and assembly

3.replaceable filters

Question 159. Purpose of surfacing

1. to strengthen the product when applying a layer of metal using fusion welding.

2.strengthening the product by increasing the metal layer.

3.obtaining special properties of the metal surface and restoring worn parts...

Question 160. With an increase in the diameter of the electrode, the penetration depth is:

1.decreases.

2.increases…

3.does not change.

4.equal to zero.

Question 161. When reducing the diameter of the electrode, the width of the weld bead:

1.decreases…

2.increases.

3.equal to zero.

4.does not change.

Question 162. Features of surfacing technique

1.reduced penetration depth to prevent destruction of the deposited layer.

2.reduced penetration depth to prevent deformation of the deposited layer.

3.reduced penetration depth to ensure the specified chemical composition deposited layer...

4.reduced penetration depth to save energy.

Question 163. When the electrode moves slowly

1. no crater is formed, the base metal does not connect well to the weld.

2. The weld seam is narrow.

3.possible overheating and burnout, undercuts along the edges, the seam is thick and wide...

4. The weld seam is convex, a crater is formed.

Question 164. When the electrode moves too quickly

1. The weld seam is wide, undercuts are excluded.

2.a crater does not form, the base metal does not connect well with the weld...

3. The weld seam is convex, a crater is formed.

4. The depth of penetration and the height of the convexity increase, and the width of the seam decreases.

Question 165. Is it possible to tack with another type of electrodes?

3. undesirable.

4.required.

Question 166. Short seams when assembling parts for welding are called

1. assembly.

2.detailed.

3.angular.