Can the argon welding certificate weld full argon? Does the welding certificate include argon arc we

Strictly speaking, it is not possible, but it is more difficult to make a base in operation, and it is much easier to fill the cover. In practice, it is also allowed to operate full argon if it is not too strict.

Argon arc welding priming, electrode arc welding CO2 cover surface, referred to as argon electric welding.

It is to pass argon shielding gas around the arc welding to isolate the air from the welding area and prevent oxidation in the welding area.

Argon arc welding technology is based on the principle of ordinary arc welding, the use of argon to protect the metal welding consumables, through high current to make the welding consumables melt into a liquid state on the welded substrate to form a molten pool, so that the welded metal and the welding consumables to achieve metallurgical combination of a welding technology, because of the continuous delivery of argon in the high temperature melt welding, so that the welding consumables can not contact with the oxygen in the air, thereby preventing the oxidation of the welding consumables, so that stainless steel, iron hardware metals can be welded.

Extended information: The working principle of argon arc welding in the main circuit, auxiliary power supply, drive circuit, protection circuit, etc. is the same as that of hand arc welding. I will not go into more detail here, but focus on the unique control function and arc starting circuit function of argon arc welding machine.

The reason why TIG welding can be so widely used is mainly because of the following advantages.

1. Argon protection can isolate the adverse effects of oxygen, nitrogen, hydrogen and other gases in the air on the arc and molten pool, reduce the burning loss of alloying elements, and obtain dense, spatter-free and high-quality welded joints;

2. The arc of argon arc welding is stable, the heat is concentrated, the arc column temperature is high, the welding production efficiency is high, the heat affected zone is narrow, and the weldment stress, deformation and crack tendency of the weldment are small;

3. Argon arc welding is open arc welding, which is convenient for operation and observation;

4. The electrode loss is small, the arc length is easy to maintain, and there is no flux and coating layer during welding, so it is easy to realize mechanization and automation;

5. TIG welding can weld almost all metals, especially some refractory metals and easily oxidized metals, such as magnesium, titanium, molybdenum, zirconium, aluminum, etc. and their alloys;

6. It is not limited by the position of the weldment, and can be welded in all positions.

The test item is argon electric welding, and can not operate full argon pipe welding.

With ordinary DC TIG welding machine, almost all metals except aluminum and magnesium can be welded, and AC TIG welding machine is currently the best way to weld aluminum and magnesium.

TIG welding is not included in the welding certificate. TIG welding and CO2 shielded welding are different from manual welding, so a separate certificate is required. Electric welding (narrow electrode hand arc welding), two welding welding, argon arc welding, oxygen welding (oxyacetylene gas welding, propylene oxide gas welding, etc., oxygen welding is not called correctly, is:

Gas welding) operation items are all within the scope of melting electrode welding, so they can be operated.

The permitted operation items of the welder's certificate also include: oxyacetylene (propylene oxide, etc.), plasma cutting, electroslag welding, submerged arc welding, plasma welding, carbon arc gouging, and some dissimilar metal brazing operations.

Welding. It is an economical, applicable and technologically advanced method in material joining and processing. Welding can be achieved between almost any two metal materials, as well as between some metal materials and non-metal materials; It can be realized to make a large, economical and reasonable structure from small to large; Materials with different properties can be used in different parts of the structure to give full play to the characteristics of various materials; Welding parts have the characteristics of good air tightness and light weight; Welding with electricity can also be used to weld between ultra-thin and ultra-fine materials.

The argon welder certificate generally needs to be done six。All include: fusion welding, electric welding, gas welding, arc welding, electric welding gas cutting, a total of six others, ordinary welder operation certificate welding and thermal cutting special operation certificate includes, electrode hand arc welding, tungsten argon arc welding, two protection welding, air plasma cutting, gas cutting gas welding, electroslag welding, submerged arc welding and other items.

Explanation of argon welding

Argon arc welding priming, electrode arc welding CO2 cover surface, referred to as argon electric welding.

Argon arc welding technology is a welding technology based on the principle of ordinary arc welding, using argon to protect metal welding consumables, and melting the welding consumables into a liquid state on the welded substrate to form a molten pool through high current, so that the welded metal and welding consumables can achieve metallurgical combination.

Because argon is continuously sent in high-temperature melt welding, the welding consumables cannot be in contact with the oxygen in the air, thereby preventing the oxidation of the welding consumables, so stainless steel and iron hardware metals can be welded.

After the root of the groove melts to form a molten droplet, the welding wire is gently pushed into the molten pool, and swings to the pipe, and the molten iron is selected to the root of the groove to ensure the height of the back weld.

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Argon arc welding certificate and welding certificate are collectively called, (welder operation certificate), not a single welding certificate, argon arc welding certificate, there is no single point of the certificate, are called welder operation certificate, in addition to manual arc welding can also be examined or trained to learn to obtain the boiler pressure vessel certificate, this Birang certificate is a special certificate for welding pressure vessels, divided into content and projects, this certificate is a very important pressure vessel certificate.

Application conditions for TIG welding certificate and electric welding certificate:

1. Be at least 18 years old and meet the age requirements stipulated by the relevant types of work.

2. Passed the physical examination of the hospital and have no diseases and physiological defects that hinder the corresponding special operations.

3. Junior high school degree or above.

4. Meet other conditions required by the corresponding special operations.

Welder Theory Exam Subjects:

1. Welder safety production laws and regulations and safety management.

2. Basic knowledge of fusion welding and thermal cutting.

3. Identification of hazards in melting welding and thermal cutting operations.

4. Safe electricity for melting welding and thermal cutting.

5. Safe use of chemicals.

6. Fire and explosion prevention of melt welding and hot regret pure knife cutting. Slip pins.

7. Melting welding and thermal cutting operations, labor production and protection. <>

Legal analysis: Welders who do TIG welding are required to have a welder's certificate.

Legal basis: Article 21 of the Fire Protection Law of the People's Republic of China prohibits smoking and the use of open flames in places with fire and danger. If it is necessary to use open flame operation due to special circumstances such as construction, the approval procedures shall be handled in advance in accordance with the regulations, and corresponding fire safety measures shall be taken; Operators shall comply with fire safety regulations.

Personnel who carry out fire hazard operations such as electric welding and gas welding and operators of automatic fire protection systems must be certified to work and abide by fire safety operation procedures.