Electric welding works on automatic and semi-automatic machines. Description of the course "electric welder on automatic and semi-automatic machines". Description of work, tasks and duties
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| Instructions for the position " Electric welder on automatic and semi-automatic machines of the 4th category", presented on the site, meets the requirements of the document -" REFERENCE BOOK of qualification characteristics of workers' professions. Issue 42. Metal processing. Part 1. Managers, professionals, specialists, technical employees. Part 2. Workers. Book 1. "Metal casting", "Metal welding". Book 2. "Drawing, squeezing, cold stamping of metal. Production of heating boilers, metal tanks and similar products", "Forging, high and low temperature metal processing". Book 3. "Turning, drilling, milling and other types of metal and material processing", "Metal coating with metals. Painting". Book 4. "Coating of metals with non-metals: enamel and other types of coating", "Locksmith and assembly work in the production of machines" ", which was approved by the order of the Ministry of Industrial Policy of Ukraine on March 22, 2007 N 120. Approved by the Ministry of Labor and Social Policy of Ukraine. since April 2007 The status of the document is "valid". |
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Preface to job description
0.1. The document comes into force from the moment of its approval.
0.2. Document developer: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.
0.3. The document has been agreed upon: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.
0.4. Periodic check of this document produced at intervals not exceeding 3 years.
1. General Provisions
1.1. The position "Electric welder on automatic and semi-automatic machines of the 4th category" belongs to the category "Workers".
1.2. Qualification Requirements- vocational education. Advanced training and work experience in the profession of an electric welder on automatic and semi-automatic machines of the 3rd category - at least 1 year.
1.3. Knows and applies in activities:
- the structure of various welding machines, semiautomatic devices, plasma torches and power sources;
- the basic laws of electrical engineering within the scope of the work that it performs;
- test methods for welded seams;
- brands and types of welding consumables;
- types of defects in welds and methods of their prevention and elimination;
- the influence of welding modes on the geometry of the weld;
- the mechanical properties of the metals that are welded.
1.4. An electric welder on automatic and semi-automatic machines of the 4th category is appointed and dismissed by order of the organization (enterprise / institution).
1.5. The electric welder on automatic and semi-automatic machines of the 4th category reports directly to _ _ _ _ _ _ _ _ _ _.
1.6. Electric welder on automatic and semi-automatic machines of the 4th category supervises the work of _ _ _ _ _ _ _ _ _ _.
1.7. An electric welder on automatic and semi-automatic machines of the 4th grade during his absence is replaced by a person appointed in the prescribed manner, who acquires the appropriate rights and is responsible for the proper performance of the duties assigned to him.
2. Description of work, tasks and duties
2.1. Performs automatic and mechanized welding using a plasmatron of complex devices, assemblies, structures and pipelines made of carbon and structural steels, cast iron, non-ferrous metals and alloys.
2.2. Performs automatic welding of critical complex building and technological structures that work in difficult conditions.
2.3. Performs automatic gas-shielded welding with an electrode that does not melt, hot-rolled staffs made of non-ferrous metals and alloys under the guidance of a highly qualified electric welder.
2.4. It fuses defects in machine parts, mechanisms and structures.
2.5. Hardfacing complex and critical assemblies, parts and tools.
2.6. Reads drawings of complex welded steel structures.
2.7. Knows, understands and applies the current regulatory documents concerning his activities.
2.8. Knows and complies with the requirements of regulatory enactments on labor protection and the environment, complies with the norms, methods and techniques for the safe performance of work.
3. Rights
3.1. An electric welder on automatic and semi-automatic machines of the 4th category has the right to take action to prevent and eliminate cases of any violations or inconsistencies.
3.2. An electric welder on automatic and semi-automatic machines of the 4th category has the right to receive all social guarantees provided for by law.
3.3. An electric welder on automatic and semi-automatic machines of the 4th category has the right to demand assistance in the performance of his official duties and the exercise of rights.
3.4. An electric welder on automatic and semi-automatic machines of the 4th category has the right to demand the creation of organizational and technical conditions necessary for the performance of official duties and the provision of necessary equipment and inventory.
3.5. An electric welder on automatic and semi-automatic machines of the 4th grade has the right to get acquainted with the draft documents relating to his activities.
3.6. An electric welder on automatic and semi-automatic machines of the 4th category has the right to request and receive documents, materials and information necessary for the performance of his official duties and orders of the management.
3.7. An electric welder on automatic and semi-automatic machines of the 4th category has the right to improve his professional qualifications.
3.8. An electric welder on automatic and semi-automatic machines of the 4th grade has the right to report all violations and inconsistencies identified in the course of his activity and make proposals for their elimination.
3.9. An electric welder on automatic and semi-automatic machines of the 4th grade has the right to familiarize himself with the documents defining the rights and obligations for the position held, the criteria for assessing the quality of the performance of official duties.
4. Responsibility
4.1. An electric welder on automatic and semi-automatic machines of the 4th category is responsible for non-fulfillment or untimely fulfillment of the duties assigned by this job description and (or) non-use of the granted rights.
4.2. An electric welder on automatic and semi-automatic machines of the 4th category is responsible for non-compliance with the rules of internal labor regulations, labor protection, safety, industrial sanitation and fire protection.
4.3. An electric welder on automatic and semi-automatic machines of the 4th category is responsible for disclosing information about an organization (enterprise / institution) related to a trade secret.
4.4. An electric welder on automatic and semi-automatic machines of the 4th category is responsible for non-fulfillment or improper fulfillment of the requirements of internal normative documents organizations (enterprises / institutions) and legal orders of the management.
4.5. An electric welder on automatic and semi-automatic machines of the 4th category is responsible for offenses committed in the course of his activities, within the limits established by the current administrative, criminal and civil legislation.
4.6. An electric welder on automatic and semi-automatic machines of the 4th category is responsible for causing material damage organization (enterprise / institution) within the limits established by the current administrative, criminal and civil legislation.
4.7. An electric welder on automatic and semi-automatic machines of the 4th category is responsible for the misuse of the granted official powers, as well as their use for personal purposes.
5. Examples of work
5.1. Welding: Tanks of unique powerful transformers.
5.2. Girders of running bridge cranes with a lifting capacity of less than 30 tons.
5.3. Sheet metal building blocks and technological structures: air heaters, scrubbers, blast furnace casings, separators, reactors, blast furnace flues, etc.
5.4. Columns, bunkers, beams, overpasses.
5.5. Head bodies, traverses, press and hammer bases.
5.6. Set: frames, stringers, keels.
5.7. Deckhouse superstructures made of aluminum-magnesium alloys.
5.8. External cladding, flooring of the second bottom, main deck - welding on racks.
5.9. Decks, platforms.
5.10. Base plates for walking excavator units.
5.11. Sealed seams of category I - microplasma welding.
5.12. Welding and surfacing: Rolls of rolling mills, bandages - surfacing.
5.13. Sets for strong partitions of the ship's hull - welding.
5.14. Grilles, hoods, junction boxes - hardfacing.
5.15. On semi-automatic machines: Welding: Apparatus, vessels and containers that operate without pressure.
5.16. Transformer tanks.
5.17. Boiler burner sets and casings.
5.18. Cast iron parts.
5.19. Turbine impeller chambers.
5.20. Frameworks for industrial furnaces and boilers.
5.21. Gas exhaust manifolds and pipes.
5.22. Columns, bunkers, trusses and trusses, beams, overpasses.
5.23. Regulating rings for hydraulic turbines.
5.24. Housings and axles of the driving wheels of the header.
5.25. Rotor bodies with diameters up to 3500 mm.
5.26. Turbine shut-off valve bodies up to 25,000 kW.
5.27. Fasteners and supports for pipelines.
5.28. Brackets and pivots for locomotive bogies.
5.29. Thick letters (armor).
5.30. Sets are longitudinal and transverse in volumetric sections to the flooring of the second bottom and to the outer skin.
5.31. Lower crankcases of motors.
5.32. Decks and platforms.
5.33. Foundation slabs of large electrical machines.
5.34. Dust and gas pipelines, fuel supply units and electrostatic precipitators.
5.35. Conveyor frames.
5.36. Tanks for petroleum products with a capacity of less than 1000 cubic meters.
5.37. Metal sleeves.
5.38. Air cooled turbo generator stators.
5.39. Crusher beds.
5.40. Bases and bodies of electrical machines are cast welded.
5.41. The beds of large machine tools are cast iron.
5.42. Pipelines of external and internal networks of water supply and district heating - welding on installation.
5.43. Pipelines of external and internal gas supply networks low pressure- welding in stationary conditions.
5.44. Technological pipelines of V category.
5.45. Tanks are automobile.
5.46. Masts, drilling rigs and operational - welding in stationary conditions.
5.47. Welding and surfacing: Cast iron parts - hardfacing.
5.48. Turbine impeller chambers - surfacing.
5.49. Compressor casings, low and high pressure cylinders of air compressors - crack surfacing.
5.50. Rails and prefabricated crosses - end surfacing.
5.51. Beds of working stands of rolling mills - surfacing.
5.52. Car block cylinders - shell surfacing.
§ 51. Electric welder on automatic and semi-automatic machines 3rd category
Attention! This qualification characteristic excluded by order of the Ministry of Labor of Russia dated April 9, 2018 N 215
Description of the work. Automatic and mechanized welding using a plasma torch in all spatial positions of the weld of medium complexity of devices, units, parts, structures and pipelines made of carbon and structural steels. Welding 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: device used welding machines, semiautomatic devices, plasma torches and power sources; properties and purposes of welding materials; main types of control of welded seams; rules for the selection of welding consumables; causes of internal stresses and deformations in the welded products and measures to prevent them; rules for setting welding modes according to the specified parameters.
Work examples
On automatic machines:
Welding
1. Apparatus for vessels and containers operating without pressure.
2. Cardan shafts of cars.
3. Covers of the axle shafts of the rear axle.
4. Wheels of cars.
5. Struts, half-shafts and landing gear struts of aircraft.
6. Tee joints without bevel edges.
7. Tee joints of a set of partitions, decks, platforms, frames.
8. Large machine beds.
9. Joints and grooves of sections, partitions, decks, baffles from low-carbon and low-alloy steels.
10. Technological pipelines of V category.
11. Tanks are automobile.
12. Seams of the 2nd category - microplasma welding.
On semi-automatic machines:
Welding
1. Beater and cutting drums, front and rear axles of a tractor trailer, drawbar and frame of a combine and a header, augers, a header, a rake and a reel.
2. Sidewalls, transition platforms, footboards, carcasses and cladding.
3. Raid buoys and barrels, artillery boards and pontoons.
4. Details of freight car body frames.
5. Frameworks for boards and control panels.
6. Support rollers.
7. Assembled casings, heating boilers.
8. Coamings of doors, hatches, necks.
9. Structures, assemblies, details for gun mounts.
10. Enclosures for electrical explosive equipment.
11. Bodies of dump trucks.
12. Machine beds of small dimensions.
13. Racks, bunker grates, transition platforms, ladders, railings, decks, boiler casing.
14. Chimneys up to 30 m high and ventilation pipes made of carbon steel sheet.
15. Connected smoke tubes in boilers and superheater tubes.
16. Non-pressure water pipelines (except for main ones).
17. Pipelines of external and internal networks of water supply and district heating - welding in stationary conditions.
18. Electrofusion couplings.
Welding and fusing
1. Strikers and shabots of steam hammers - fusing.
2. Shafts of electrical machines - necks fusion.
3. Brake pads trucks, casings, axle shafts of the rear axle - welding.
4. Hoisting cranes - fusion of slopes.
5. Locomotive frames - welding of conductors, flooring sheets, parts.
6. Gears - cladding of teeth.
From July 1, 2016, employers are required to apply professional standards if the requirements for the qualifications that an employee needs to perform a certain job function are established Labor Code, federal laws or other regulatory legal acts ( the federal law dated May 2, 2015 No. 122-FZ).
To search for approved professional standards of the Ministry of Labor of the Russian Federation, use
Group 351 final qualification tests.
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 do carbon dioxide cylinders have?
a. white with red inscription "Carbonic acid";
b. blue with black inscription "Carbonic acid";
v. black with yellow inscription "Carbonic acid".
Question 2. What pressure indicates a full argon cylinder?
a. 147 kgf / cm²;
Question 3. What is a pulling feeder in a semiautomatic device?
a. the feeder is located in the torch handle. The welding wire is drawn in either from a spool in the body of the semiautomatic device, or a spool (mostly very small) is placed in the handle;
b. the mechanism pushes the wire into the sleeve (when welding with thin, aluminum or fluxed wire, jams inside the sleeve are possible);
v. This machine has two synchronous feeders. One pushes the filler wire from the body of the apparatus, and the second pulls it to the place of welding
Question 4. What is included in the shielding gas supply system on a semiautomatic device?
a. cylinder, gas heater (for СО₂), 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. Lv (~ 2 ... 10 mm);
b. Lv (~ 8 ... 25 mm);
v. Lv (~ 10 ... 40 mm).
Question 6. The sequence of switching on the parts and mechanisms of the equipment of the semiautomatic welding machine:
a. shielding gas supply, turning on the arc power source, feeding the electrode wire, starting the arc, moving the machine at the welding speed;
b. turning on the arc power source, feeding the electrode wire, moving the machine at the welding speed;
v. shielding gas supply, electrode wire supply, arc excitation, machine movement at welding speed.
Question 7. What are the different systems for feeding an electrode wire in semiautomatic machines?
a. pushing, pulling, pulling-pushing types;
b. pushing type;
v. pulling and pushing types.
Question 8. What system of wire feeding in semi-automatic machines is the most widespread, is characterized by simplicity and low weight of the torch, but limits the length of the hoses to 3m?
a. pushing type;
b. pulling type;
v. push-pull type.
Question 9. What is the maximum hose length allowed in portable semiautomatic devices?
Question 10. What measures are used with welding machine to prevent flux cored wire from flattening?
a. use two pairs of feed rollers;
b. use one pair of rollers;
v. use a pipe instead of a wire feed hose.
Question 11. Name the replaceable, wear parts of the semiautomatic burner.
a. conductor (tip), nozzle.
b. conductor (tip);
a. variable;
b. constant straight polarity;
v. constant reverse polarity.
Question 13. What is the effect of the increase in the arc length and, accordingly, the 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 the inclination of the electrode with an angle of 5-10 ° have on the penetration depth and weld quality?
a. it is more difficult to observe the formation of the seam, but it is better to observe the edges to be welded and to guide the electrode precisely along the gaps. In this case, the width of the bead increases, and the penetration depth decreases;
b. the visibility of the welding zone improves, the penetration depth increases and the deposited metal turns out to be denser;
v. the visibility of the welding zone deteriorates, the penetration depth and the width of the bead increase.
Question 15. What is the number of the lead-in tip?
a. four;
Question 16. What does the entry on the MIG (Metal Inert Gas) welding machine mean?
a. metal welding is carried out on an automatic machine;
Question 17. What does the entry on the MAG (Metal Active Gas) welding machine mean?
a. metal welding is carried out on a semiautomatic device;
b. the welding process takes place when exposed to an inert gas (argon or another mixture of gases);
v. metal welding in active gas (carbon dioxide).
a. for 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 the conditions of small-scale and one-off production for welding products with long, straight seams.
Question 19. What seam is shown in the drawing?
a. butt;
b. angular;
v. T-shaped;
d. overlap.
Question 20. What mechanism in the unwinding device of the semiautomatic 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 entangled?
a. two rollers;
b. braking mechanism;
v. electric current cut-off mechanism.
Question 21. The gas nozzle of the burner is made of ...
v. aluminum.
Question 22. A weld is called:
a. section of the 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. the section of the welded joint formed as a result of the crystallization of the electrode.
Question 23. A butt connection is:
Question 24. Of 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 the weld metal;
deoxidation of the weld metal;
e. air ionization;
e. refining the weld metal;
f. thermionic emission.
Question 25. In which zone of the weld are often cracked?
a. fusion zone;
b. heat 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. The 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 joint in which the edges of the parts to be welded are 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 adjoins the surface of one part at an angle, the end of which is adjacent to the mating surface and is welded to it.
Question 28. How do the welding currents differ in magnitude when tacking and welding?
a. the current should be 20-30% more of the welding current;
b. the current must be more than 10-20% of the welding current;
v. the current should be less by 20-30%;
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 it?
a. butt;
b. angular;
v. tavrovoe;
g. overlapping.
Question 30. Seams of welded joints are straight, circular, curved and are classified according to:
b. position;
v. configuration;
g. of length.
Question 31. Depending on what characteristics of the connection, set the pitch and size of the tacks?
a. depending on the length of the connection;
b. depending on the type of connection;
v. depending on the type of seam;
d. depending on the thickness of the joint.
Question 32. Assembly on welding tacks is used for structures made of sheets up to ...
Question 33. The change in the shape and size of the product under the influence of external and internal forces is called ..
a. deformation;
b. tension;
v. strength;
by stretching.
Question 34. The height of the welding station cabin must have a height of ...
a. not less than 1.5m;
b. not less than 2m;
v. not less than 4m.
Question 35. Protective coatings are used to:
a. for the formation of a small amount of slag;
b. ionization of the gas gap;
v. protection of molten metal from air;
g. protection against metal splashes.
Question 36. When welding, the part changes its dimensions due to:
a. uneven heating;
b. unevenness of gravity;
v. uneven pressing;
d. uneven friction forces.
Question 37. With a low welding current, there are:
a. burn-throughs;
b. undercuts;
v. lack of penetration;
Q 38. Weld over 1000 mm long are welded:
a. from the ends to the middle;
b. from the middle to the ends;
v. in a reverse-step manner;
d. on the aisle.
Question 39. A small clearance in structural elements leads to:
a. the formation of pores;
b. burn-through;
v. lack of penetration;
d. cracks.
Question 40. Which area of the welding arc has the highest temperature:
a. anode area;
b. cathode region;
v. arc pillar;
Question 41. Large detail clearance leads to:
a. undercuts;
b. lack of penetration;
v. burn-through;
d. cracks.
Question 42. To reduce deformations it is necessary:
a. preliminary deformation;
b. accompanying deformation;
v. reverse deformation;
d. stepwise deformation.
Question 43. What is the most correct definition of a welding arc?
a. electric arc discharge at the point where the circuit is broken.
b. electric arc discharge in the interelectrode space in a partially ionized mixture of metal vapors, gas, electrode components, coatings, fluxes.
v. Electric arc discharge in a mixture of atoms and molecules of air.
Question 44. What parameters of the mode determines the power of the welding arc?
a. electrical circuit resistance;
b. the magnitude of the arc voltage;
v. the value of the welding current and arc voltage.
Question 45. What should be the current value for arc welding in the vertical position compared to the current value for welding in the lower position?
a. the value of the current when welding in the vertical position should be less than when welding in the lower position;
b. the value of the current when welding in the vertical position should be greater than when welding in the lower position;
v. the current value 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 in 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 reverse polarity;
v. direct current of direct polarity.
Question 49. What can contribute to the formation of burn-through during welding?
a. a small amount of blunting of the edges of parts with a V-groove;
b. no gap in the joint assembled for welding;
v. long arc welding.
Question 50. Indicate whether it is necessary to remove potholders that have unacceptable external defects (cracks, external pores, etc.) based on the results of visual inspection?
a. follows;
b. it should not be if the tack weld is completely overcooked during welding;
v. It should be removed only if a crack is found in the tack weld.
Question 51. Which of the following factors most affects the width of the seam in manual arc welding?
a. transverse vibrations of the electrode;
b. arc voltage;
v. the value of the welding current.
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 the electrode.
Question 53. What brands of electrodes are rutile coated?
a. UONII 13/45, SM-11;
b. ANO-3; ANO-6 ,. MP-3;
v. ANO-7, ANO-8.
Question 54. What are the reasons for the crater formation?
a. a crater is formed at the place where gases are released during the welding process;
b. due to a sharp retraction of the arc from the weld pool;
v. due to significant shrinkage of the metal during crystallization.
Question 55. What is the purpose of the electrode rod being coated?
a. to stabilize the burning of the arc, alloy the weld metal and protect the weld pool from the ingress of gases from the air and the formation of the seam;
b. to prevent the rod from moisture ingress;
v. To reduce the likelihood of both cold and hot cracking in the weld metal.
Question 56. How does the length of the arc affect the stability of its burning?
a. with an increase in the length of the arc, the combustion stability decreases;
b. with an increase in the length of the arc, the stability of combustion 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 the increase in current during manual arc welding affect the geometric dimensions of the weld?
a. the penetration depth decreases and the seam reinforcement height increases;
b. the depth of penetration and the height of the seam reinforcement increases;
v. the height of the reinforcement of the seam 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 small and large values of the welding current.
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 violations of technology can lead to porosity of the joints?
a. poor cleaning of edges before welding from rust, traces of grease;
b. high welding current;
v. small gap in the joint.
Question 62. Why does the amount of deformation of the welded metal depend to a greater extent?
a. from a tendency to hardening;
b. from uneven heating;
v. from the brand of the electrode with which welding is performed.
Question 63. What is the size of the gap between the welded edges of sheet elements 5 mm thick in accordance with GOST 5264-80?
Question 64. What is the symbol for welded joints?
a. C-butt, U-corner, T-tee, H-overlap, letter and number, following it - symbol of the welded joint;
b. C-butt, U-corner, H-overlap ,. T-spot welding, the numbers after the letters indicate the method and method of welding;
v. C-butt, U-corner, T-tee, U-ceiling seam, numbers after the letters indicate the methods and scope of control.
Question 65. Which of the following has the greatest impact on the weldability of metals?
a. the 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 amount of deformation?
a. increases the residual deformations of welded structures;
b. reduces residual deformations of welded structures;
v. does not affect the permanent 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 head materials science organization;
v. after heat treatment.
Question 68. Which of the following affects the choice of electrode diameter and welding current?
a. grade and thickness of the welded metal;
b. ambient temperature;
v. type of welding machine.
Question 69. What is the correct subdivision of electrodes by type of coating by
b. oxidizing, reducing and passivating coatings;
v. acidic, basic, cellulosic, rutile coatings.
Question 70. Which of the following is the cause of slag inclusions?
a. poor protection of the weld from the wind during installation;
b. traces of moisture and oil on the welded edges;
v. poor quality of the electrode coating in manual arc welding.
Question 71. What are the requirements for the quality of the surface preparation of the edges before welding?
a. it is allowed to use metal as delivered;
b. the joint surfaces of 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 joint surfaces of 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 that follow it mean in the marking of the 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. Does the nature and polarity of the current affect the amount of penetration in manual arc welding?
a. influences insignificantly;
b. does not affect;
v. affects significantly.
Question 74. What defects can there be in the weld if the bluntness of the edges exceeds the recommended value?
a. the appearance of lack of penetration of the root of the seam is possible;
b. the appearance of cold cracks is possible;
v. the appearance of porosity is possible.
Question 75. What does the letter "A" mean in the marking of types of electrodes, for example E42A?
a. reduced content of alloying elements;
b. reduced carbon content;
v. increased plastic properties of the deposited metal.
Question 76. Basic coated electrodes are marked with the letter:
Question 77. Indicate the letter designation of the type of electrode coating.
a. A-acidic, B-basic, C-cellulose, P-rutile, P-other types;
b. K-acidic, O-basic, OR-organic, RT-rutile, P-other types;
v. K-acidic, O-basic, C-cellulose, P-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 plasticity of the deposited metal;
v. protect the molten weld metal from interaction with air.
Question 79. What is controlled by 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 characterizing the manual arc welding mode?
a. type of current, polarity, thickness of the welded metal;
b. welding current value, electrode diameter, type of current and polarity;
v. arc voltage, welded metal grade.
Question 81. What is 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 are more prone to hot cracking?
a. steels with a carbon content of 0.25% to 0.35%;
Question 83. Which of the non-consumable electrodes can only work 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-shaped;
v. angular.
d. overlap.
Question 85. What methods include destructive testing of welded joints?
a. visual and measuring control;
b. ultrasonic testing;
v. bending angle tests.
Question 86. What is the role of binders 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. length of the electrode;
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 at which the electrode is connected to the negative pole of the arc power source, and the weld object to the positive?
a. straight;
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. For what purpose is blunting at the root of grooving performed?
a. to reduce the proportion of the base metal in the weld metal;
b. so as not to burn through the metal;
v. in order to save electrode metal.
Question 91. What does the double "AA" at the end indicate legend welding wire Sv-08 AA?
a. high sulfur content;
b. high phosphorus content;
v. for a higher purity of the metal.
Question 92. What are the length seams?
a. short, medium, long;
b. chess, chain;
v. solid, intermittent.
Question 93. What are the seams by the amount of deposited metal?
a. reinforced;
b. normal;
v. strengthened, normal, weakened.
Question 94. What is the effect of the welding arc burning 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.
Question 97. Which of the proposed types of welding allows you to use the highest degree of mechanization and automation of the process?
a. manual arc welding;
b. gas welding;
v. submerged arc welding;
d. gas-shielded welding.
Question 98. Is it possible to weld products by submerged arc on the weight?
b. no, it is necessary to pre-weld the root of the seam or the presence of a rigid supporting surface;
v. there is no difference, it can be welded both by weight and with pads.
Question 99. How does the electrode metal melt during electroslag welding?
a. compressed electric arc;
b. the heat released when the electric current passes through the slag bath;
v. electric discharge.
Question 100. What current is used for automatic submerged-arc welding of critical structures?
a. constant straight polarity ;;;
b. constant reverse polarity;
v. variable.
Question 101. What is the height of the bulk layer of the flux 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 source of heat in plasma welding?
a. electric arc;
b. compressed electric arc;
v. electrical discharge.
Question 103. The choice of the grade of wire for arc welding with a consumable electrode in active gases is determined by:
a. by the method of smelting the welded metal
b. chemical composition and mechanical properties of the welded metal
v. the conditions in which the welded structure operates
the position of the welds in space
Question 104. What welding wire is used in carbon dioxide welding of mild steel St 3sp:
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. mixture of argon and carbon dioxide
Question 106. What is the characteristic of the pulsed welding process:
a. process in which the welding current changes according to a certain law in time with a constant frequency
b. process in which the welding current is supplied at a frequency and amplitude set by the appropriate controls
v. a process in which the welding material is fed into the weld pool by impulses due to a special drive
Question 107. What is the duty cycle (turn-on period) of the welding source:
a. the ratio of the operating time (burning) of the arc 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 time (burning) of the arc, expressed as a percentage
v. total time work of the welding source per shift
Question 108. Depending on what the type (number) of filter glass of the welder's protective mask is selected:
a. on the strength of the welding current
b. from the welded material
v. from the brand of wire used
from shielding gas
Question 109. At what current in the process of welding low-alloy steels with wire Sv-08G2S Ø1.0 mm does the jet transfer occur:
Question 110. The diameter of the welding wire is chosen depending on:
a. from the thickness of the welded metal
b. on the strength of the welding current
v. from the position of the weld in space
from shielding gas consumption
Question 111. The loss of electrode metal when welding with a consumable electrode in a shielded mixture of 82% Ar + 18% CO 2 compared to welding in a shielded gas CO 2 will be:
a. smaller
b. more
v. much bigger
Question 112. What does the following indicate technical specifications welding source - welding current 250 A at 60% duty cycle:
a. welding at currents of 250 A should be carried out with a duty cycle (turn-on period) equal to 60%
b. welding should be carried out 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 (with all other conditions being the same) when welding vertical seams:
a. upwards
b. top down
Question 114. In carbon dioxide consumable arc welding with an increase in the arc length, the depth of penetration:
a. decreases
b. increases
Question 115. Mechanized welding of mild 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) overhang
b. improve contact in the tip
v. reduce wire feed
d. increase tension
Question 117. How does the volume of metal directed for cutting in one pass affect the amount of deformation of the welded products:
a. increases deformation with increasing deposited metal volume
b. increases deformation with decreasing deposited metal volume
v. does not affect
d. reduces deformation with increasing deposited metal volume
Question 118. In what form of grooving, the level of deformations will be less when welding joints of sheet structures made of low-carbon steels:
a. with X-shaped
b. with U-shaped
v. with V-shaped
Question 119. How does the heating of the product during the welding process affect the value of welding deformations:
a. increases product deformation
b. reduces product deformation
v. does not affect
Question 120. Testing of welded joints "melo-kerasin test" is carried out in order to check for:
a. impermeability
b. presence of internal defects
v. presence of surface defects
g. strength
Question 121. What measures should be taken to prevent the formation of cold cracks and to ensure that high-quality welds are obtained when welding medium-carbon steels:
a. weld with a wire with a diameter of 2 mm
b. preheating and delayed cooling
v. perform welding at high currents
Question 122. What overhang of the electrode wire must be maintained when welding with a 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 30HGSA:
a. steel for 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 arc opened?
Question 129. When arcing 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. submerged.
v. in flammable gas.
d. in a vacuum.
Question 131. Is it possible to tack with other types of electrodes?
v. undesirable.
g. required.
Question 132. When reducing the diameter of the electrode, the width of the deposited bead:
a. decreases
b. increases.
v. is zero.
the year does not change.
Question 133. With a slow motion of the electrode
a. the crater does not form, the base metal does not bond well with the weld.
b. the weld is narrow.
v. overheating and burnout are possible, undercuts at the edges, the seam is thick and wide
d. the weld is convex, a crater is formed.
Question 134. With excessively fast movement of the electrode
and the weld seam is wide, undercuts are excluded.
b the crater does not form, the base metal does not bond well with the weld
v. the weld is convex, a crater is formed.
d. the penetration depth increases, the height of the bulge increases, the width of the seam decreases.
Question 135. Oscillatory movements of the electrode along the axis of the seam are necessary
a. for better root penetration.
b. to warm up the edges and obtain the required joint width
v. for suturing in one pass.
d. to obtain a high-quality seam surface.
Question 136. The highest quality seams are obtained when welding
a. in the overhead position.
b. in an upright position.
in a horizontal position.
g in the bottom position
Question 137. What does the abbreviation mean MMA(Manual Metal Arc)?
a. manual arc welding with a non-consumable electrode in an inert shielding gas
b. manual arc welding with stick (covered) electrodes
v. arc welding with a consumable metal electrode (wire) in an inert shielding gas environment with automatic filler wire feed
Question 138. What does the abbreviation mean TIG(Tungsten Inert Gas)?
a. automatic arc welding with a metal electrode (wire) in a shielded 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 environment with automatic filler wire feed
b. manual arc welding with a non-consumable electrode in an inert shielding gas
v. Arc welding with a consumable metal electrode (wire) in an active shielding gas environment with automatic filler wire feed
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 environment with automatic filler wire feed
b. arc welding with a consumable metal electrode (wire) in an inert shielding gas atmosphere with automatic filler wire feed
v. automatic arc welding with a metal electrode (wire) under a layer of flux.
Question 141 . Welding is called …
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 technological process obtaining permanent joints by establishing interatomic bonds between the parts to be welded during their heating or plastic deformation, or the combined action of both.
B. Welding is the ability of materials to form a permanent connection by melting the base metal and joining the parts to be joined using pressure.
Question 142. When is there a droplet transfer of metal when welding in shielded gases?
a. at low values of the density of the welding current;
b. at average values of the density of the welding current;
v. at high values of the density of the welding current.
Question 143. For what purpose is blunting performed on the edges of the parts?
a. to facilitate the penetration of the root of the seam;
b. to ensure the penetration of the part;
v. to avoid burn-throughs.
Question 144. In fig. depicted:
1.distribution of hardness in the heat-affected zone of the weld;
2. distribution of temperature in the heat-affected zone;
Question 145. What sources of thermal energy are used in plasma welding?
1.electric arc
2. a jet of gas heated to high temperatures, passed through an electric arc;
3.beam energy.
Question 146. The picture shows the diagram
1. manual arc welding;
2.Laser welding;
3.Automatic arc welding.
Question 147. The figure shows a diagram ...
1. Welding in shielded gases with a non-consumable electrode with direct polarity;
2. Welding in shielded gases with a non-consumable electrode with reverse polarity;
3. Automatic submerged arc welding.
Question 148. Arc welding is carried out under the action of:
2. electric arc;
3. gas flame.
Question 149. In which zone is the metal most fragile?
1.fusion zone;
2.zone of heat influence;
3.zone of the weld metal.
Question 150: The thermal class of welding does not apply.
1.electroslag welding.
2. arc welding.
3.forge welding.
Question 151. The thermomechanical class of welding does not apply
1. diffusion welding.
2.forge welding.
3. friction welding.
Question 152. The mechanical class of welding does not apply
1. Explosion welding.
2.forge welding.
3. friction welding.
Question 153. When burning an arc and melting metals, it is not necessary to protect the weld pool from:
1.oxygen.
3.hydrogen.
Question 154. Non-consumable electrodes are made in the form (indicate the wrong answer)
1.Tungsten rods.
2.Coal bars.
3.titanium rods.
Question 155. Which of these 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 shielding gas.
2.submerged.
3.in flammable gas.
4. in a vacuum.
Question 157: What is not welding station equipment?
1.electrode holder
2.welding cable
3.protective mask
4.power supply
Question 158: Welding station equipment includes
1.protective mat
2.devices for welding and assembly
3.replaceable light filters
Question 159: Purpose of surfacing
1. to strengthen the product when carrying a metal layer by 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:
1. is decreasing.
2.increases ...
3. does not change.
4. is equal to zero.
Question 161. When reducing the diameter of the electrode, the width of the deposited bead:
1.decreases ...
2.increases.
3. is equal to zero.
4. does not change.
Question 162. Features of surfacing technique
1.Reduced depth of penetration to prevent destruction of the deposited layer.
2. Reduced penetration depth to prevent deformation of the deposited layer.
3.Reduced depth of penetration to ensure the desired chemical composition deposited layer ...
4.Reduced penetration depth for energy saving.
Question 163. With the slow motion of the electrode
1.The crater is not formed, the base metal does not bond well with the weld.
2. The weld seam is narrow.
3. overheating and burnout are possible, undercuts along the edges, the seam is thick and wide ...
4.The weld is convex, a crater is formed.
Question 164. With excessively fast movement of the electrode
1.the weld seam is wide, no undercuts.
2.the crater is not formed, the base metal does not bond well with the weld ...
3.The weld seam is convex, a crater is formed.
4. the depth of penetration, the height of the bulge increases, the width of the seam decreases.
Question 165. Can I tack with other types of electrodes?
3. undesirable.
4. is required.
Question 166. Short seams when assembling parts for welding are called
1. assembly.
2.Detailed.
3. angular.
I APPROVE:
________________________
[Job title]
________________________
________________________
[Name of company]
________________/[FULL NAME.]/
"____" ____________ 20__
JOB DESCRIPTION
Electric welder on automatic and semi-automatic machines of the 5th category
1. General Provisions
1.1. This job description defines and regulates the powers, functional and job duties, rights and responsibility of an electric welder on automatic and semi-automatic machines of the 5th category [Name of the organization in the genitive case] (hereinafter - the Company).
1.2. An electric welder on automatic and semi-automatic machines of the 5th category is appointed to the position and dismissed from the position in the established current labor legislation order by order of the head of the Company.
1.3. An electric welder on automatic and semi-automatic machines of the 5th grade belongs to the category of workers and reports directly to the [name of the position of the direct manager in the dative case] of the Company.
1.4. An electric welder on automatic and semi-automatic machines of the 5th category is responsible for:
- timely and high-quality performance of tasks for their intended purpose;
- compliance with performance and labor discipline;
- compliance with labor safety measures, maintaining order, compliance with fire safety rules at the assigned work site (workplace).
1.5. A person with an average professional education in this specialty and work experience of at least 1 year.
1.6. V practical activities an electric welder on automatic and semi-automatic machines of the 5th category should be guided by:
- local acts and organizational and administrative documents of the Company;
- internal labor regulations;
- occupational health and safety regulations, industrial sanitation and fire protection;
- instructions, orders, decisions and instructions of the immediate supervisor;
- this job description.
1.7. An electric welder on automatic and semi-automatic machines of the 5th category should know:
- electrical circuits and designs of various types of welding machines, semiautomatic devices, plasma torches and power supplies;
- mechanical and technological properties weldable metals, including high-alloy steels;
- mechanical properties of the deposited metal;
- technological sequence of seams and welding mode;
- types of defects in welded seams, causes of their occurrence and methods of elimination;
- methods of control and testing of critical welds.
1.8. During the temporary absence of an electric welder on automatic and semi-automatic machines of the 5th category, his duties are assigned to [the name of the position of the deputy].
2. Job responsibilities
An electric welder on automatic and semi-automatic machines of the 5th category performs the following labor functions:
2.1. Automatic and mechanized welding using a plasmatron of complex devices, assemblies, structures and pipelines from various steels, cast iron, non-ferrous metals and alloys.
2.2. Automatic welding of various building and technological structures operating under dynamic and vibration loads, and structures of complex configuration.
2.3. Mechanized welding using a plasmatron of complex building and technological structures operating in difficult conditions.
2.4. Welding on complex devices and tilters.
2.5. Automatic welding in shielded gas with a non-consumable electrode of hot-rolled strips of non-ferrous metals and alloys.
2.6. Welding of defects in machine parts, mechanisms and structures.
2.7. Fusion of complex parts and assemblies.
In case of official necessity, an electric welder on automatic and semi-automatic machines of the 5th category may be involved in overtime duties, in the manner prescribed by law.
3. Rights
An electric welder on automatic and semi-automatic machines of the 5th category has the right:
3.1. To get acquainted with the draft decisions of the management of the enterprise concerning its activities.
3.2. Submit proposals for improving the work related to the responsibilities provided for in this job description for the management's consideration.
3.3. Inform the immediate supervisor about all the shortcomings identified in the course of the performance of their official duties in production activities enterprise (its structural divisions) and make proposals for their elimination.
3.4. To request, personally or on behalf of a direct supervisor, from the heads of the enterprise departments and specialists, information and documents necessary for the performance of their official duties.
3.5. To involve specialists from all (individual) structural divisions of the Company in solving the tasks assigned to him (if this is provided for by the provisions on structural units if not - with the permission of the head of the Company).
3.6. Require the management of the enterprise to assist in the performance of their duties and rights.
4. Responsibility and performance evaluation
4.1. An electric welder on automatic and semi-automatic machines of the 5th category bears administrative, disciplinary and material (and in some cases stipulated by the legislation of the Russian Federation - and criminal) responsibility for:
4.1.1. Failure to comply or improper fulfillment of the official instructions of the immediate supervisor.
4.1.2. Failure to fulfill or improper fulfillment of one's own labor functions and the tasks assigned to him.
4.1.3. Misuse of the granted official powers, as well as their use for personal purposes.
4.1.4. Inaccurate information about the status of the work entrusted to him.
4.1.5. Failure to take measures to suppress identified violations of safety regulations, fire safety and other rules that pose a threat to the activities of the enterprise and its employees.
4.1.6. Failure to enforce labor discipline.
4.2. Evaluation of the work of an electric welder on automatic and semi-automatic machines of the 5th category is carried out:
4.2.1. Immediate supervisor - regularly, in the process of the employee's daily performance of his labor functions.
4.2.2. Attestation Commission enterprises - periodically, but at least once every two years, based on the documented results of work for the evaluation period.
4.3. The main criterion for evaluating the work of an electric welder on automatic and semi-automatic machines of the 5th category is the quality, completeness and timeliness of his performance of the tasks provided for in this instruction.
5. Working conditions
5.1. The operating mode of an electric welder on automatic and semi-automatic machines of the 5th category is determined in accordance with the internal labor regulations established by the Company.
5.2. In connection with production necessity an electric welder on automatic and semi-automatic machines of the 5th category is obliged to go to business trips(including local significance).
Acquainted with the instructions __________ / ____________ / "____" _______ 20__
Organization name APPROVED WORKING INSTRUCTIONS Position name of the head of the organization _________ N ___________ Signature Signature decoding Place of preparation Date ELECTRIC WELDER ON AUTOMATIC AND SEMI-AUTOMATIC MACHINES (3rd DISCHARGE)
1. GENERAL PROVISIONS
1. An electric welder on automatic and semi-automatic machines is hired and dismissed by order of the head of the organization on the proposal of _________________________.
2. Electric welder on automatic and semi-automatic machines obeys _____________________________________.
3. In his activity, an electric welder on automatic and semi-automatic machines is guided by:
The charter of the organization;
Labor regulations;
Orders and orders of the head of the organization (direct manager);
This work instruction.
4. Electric welder on automatic and semi-automatic machines should know:
The device of the used welding machines, semiautomatic devices, plasma torches and power sources;
Properties and purpose of welding consumables;
The main types of control of welded seams;
Rules for the selection of welding consumables;
Causes of internal stresses and deformations in the welded products and measures to prevent them;
Rules for setting welding modes according to the specified parameters.
2. PROFESSIONAL RESPONSIBILITIES
5. Electric welder on automatic and semi-automatic machines is entrusted with:
5.1. Automatic and semiautomatic gas-shielded welding with solid electrode wire of simple and medium complexity of 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 the weld of medium complexity of devices, units, parts, structures and pipelines made of carbon and structural steels.
5.3. Welding 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. Assembly of parts and assemblies in a fixture before welding; marking for welding without fixtures.
5.7. Tacking of parts and assemblies during assembly-welding in all spatial positions.
5.8. Checking the tightness of welded seams simple knots kerosene test.
5.9. Conducting pneumatic and hydraulic tests welded structures, products under pressure up to 100 kPa (up to 1 kgf / cm2).
5.10. Elimination of defects in welded seams by manual arc and semiautomatic gas-shielded welding.
5.11. Gas brazing of welding defects.
5.12. Adjustment and straightening of parts and assemblies during the welding process.
5.13. Cleaning of welded seams, necessary for further assembly-welding of the unit.
Work examples.
Welding on automatic machines:
1. Devices, vessels and containers operating without pressure.
2. Cardan shafts of cars.
3. Covers of the axle shafts of the rear axle.
4. Wheels of cars.
5. Struts, half-shafts and landing gear struts of aircraft.
6. Tee joints without bevel edges.
7. Tee joints of a set of partitions, decks, platforms, frames.
8. Large machine beds.
9. Joints and grooves of sections, partitions, decks, baffles from low-carbon and low-alloy steels.
10. Technological pipelines of V category.
11. Tanks are automobile.
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 a header, augers, a header, a rake and a reel.
2. Sidewalls, transition platforms, footboards, carcasses and cladding.
3. Raid buoys and barrels, artillery boards and pontoons.
4. Details of freight car body frames.
5. Frameworks for boards and control panels.
6. Support rollers.
7. Assembled casings, heating boilers.
8. Coamings of doors, hatches, necks.
9. Structures, assemblies, details for gun mounts.
10. Enclosures for electrical explosive equipment.
11. Bodies of dump trucks.
12. Machine beds of small dimensions.
13. Racks, bunker grates, transition platforms, ladders, railings, decks, boiler casing.
14. Chimneys up to 30 m high and ventilation pipes made of carbon steel sheet.
15. Connected smoke tubes in boilers and superheater tubes.
16. Non-pressure water pipelines (except for main ones).
17. Pipelines of external and internal networks of water supply and district heating - welding in stationary conditions.
18. Electrofusion couplings.
Welding and fusing:
1. Strikers and shabots of steam hammers - fusing.
2. Shafts of electrical machines - necks fusion.
3. Brake shoes for trucks, casings, rear axle half-shafts - welding.
4. Hoisting cranes - fusion of slopes.
5. Locomotive frames - welding of conductors, flooring sheets, parts.
6. Gears - cladding of teeth.
3. RIGHTS
6. Electric welder on automatic and semi-automatic machines has the right:
6.1. Require the passage of periodic briefings on labor protection.
6.2. Have instructions, tools, personal protective equipment necessary for work and require the administration to provide them.
6.3. Get acquainted with the internal labor regulations and the collective agreement.
6.4. Make proposals for improving the technology of work.
6.5. _________________________________________________________________. (other rights, taking into account the specifics of the organization)
4. LIABILITY
7. Electric welder on automatic and semi-automatic machines is responsible for:
7.1. For non-performance (improper performance) of his 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 Signature transcript Visa With the working instruction _________ _______________________ familiarized Signature Signature transcript _______________________ Date
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