What do you learn about argon welding, and how long does it take to learn argon welding

Argon combined welding mainly learns 2G, 5G, 6G spatial position argon arc welding foundation, electric welding filling cover operation. It is recommended to go to a formal welding training school and make a field trip. Hope, thank you!

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.

TIG welding is the welding of argon as a shielding gas. With the help of an electric arc created between the tungsten electrode and the weld body, the welding material itself (which is also melted when filler metal is added) is heated and melted, and then the weld metal is formed. Tungsten electrodes, molten pools, arcs, and areas of joints heated by arcs are protected from atmospheric contamination by argon gas streams.

In TIG welding, the relative position of the welding torch, filler metal and weldment:

The arc length is generally times the diameter of the tungsten electrode.

When welding is stopped, the filler metal is first withdrawn from the weld pool (the filler metal is added according to the thickness of the weldment), and the hot end remains under the protection of the argon gas flow to prevent oxidation.

1.Novice (beginner) argon arc welding spot welding skills: pay attention to the time of holding down the shape, the thick material press - some, you can try it yourself, feel it, and grasp the wire feeding time, it is easy to weld through after melting, and the stainless steel thin material is gently pressed, pay attention to the different welding machine time is different, find your own feeling.

2.If argon arc welding can only be spot welded, it is to fix the spot welding position of the weldment, put the tungsten electrode in the gun mouth, and then put the welding wire on the weld, but most of the points can not be pointed, and it is easy to burn through the weldment.

2 to 3 months.

Electrical welding is divided into a variety of hand welding, argon arc welding, two protection welding, argon electric welding, etc., the simplest is the most commonly used handle welding, its principle is very simple, is to use the positive and negative electrode short circuit of the welding machine to make the electric energy produce huge arc heat to melt the welding rod and weldment, the learning cycle can be long or short, easy to understand and difficult to refine. It's easy to learn, you can learn it in ten days and half a month. It will definitely take a long time to practice if you want to learn well, because hand welding is the basis of welding.

The difficulty of several other welds is about the same, the easiest of which should be the second welding, the full name of the second welding is carbon dioxide gas shielded welding, as long as there is a little bit of the foundation of hand welding, it is very easy to learn. TIG welding is relatively simple, and the most basic thing is to have a good foundation of hand welding, which can be learned in about one or two months. Generally, there are very few argon things, most of which are argon electric welding, gas shielded welding and gas welding.

The above premise can only be realized on the basis of welding training in a formal training school.

Argon electric welding needs attention:

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. <>

Learning electric welding is very simple, there are no technical requirements, but there are many technical requirements in order to learn electric welding. Learning electric welding includes learning welding techniques such as hand welding, argon arc welding and secondary welding, and what welding knowledge should be mastered to learn argon arc welding and secondary welding technology?

The weld penetration of argon arc welding is small, and the working deformation is small. The weld has a high density, and it is not easy to form defects such as slag inclusions, porosity, and undercuts. It has high requirements for non-destructive testing, and the strength, toughness and plasticity of the weld itself are good.

The tensile, bending, impact and other indicators in the mechanical properties are better than other welding methods. It can better meet the requirements of single-sided welding, double-sided forming and thin-wall welding. The disadvantage is low work efficiency and high processing cost.

And the cost varies greatly with the argon market. CO2 gas shielded welding has high efficiency and low cost, which can meet many on-site operations under general testing requirements, and is especially suitable for using manpower to catch up with the schedule. However, the shortcomings are also obvious, and the state generally restricts the use of occasions with strict quality control of welds.

Learn the skills of electric welding:

a. Master the welding speed - too fast, the melting temperature is not enough, it is easy to cause defects such as non-fusion and poor weld forming; If the welding speed is too slow, the high temperature residence time increases, the width of the heat-affected zone increases, the grain of the welded joint becomes coarse, the mechanical properties decrease, and the deformation of the weldment increases. When welding thinner weldments, it is easy to form burn-through.

b. Welding current - too small will make the arc unstable, resulting in defects such as unpenetrated welding, slag inclusion and poor weld forming. If the welding current is too large, it is easy to produce undercut, weld penetration, increase the deformation of the weldment and the amount of metal spatter, and also change the structure of the welded joint due to overheating.

Training course for welders.

Welding technology is a method of using welding materials (electrodes or wires) to connect two or more pieces of base metal (workpiece to be welded) into a whole under high temperature or high pressure conditions.

Career Direction:

Technical direction: automotive welding expert, automotive welding technician.

Management direction: master of automotive spraying and welding technology, automotive welding consultant.

Business direction: automotive paint repair expert.

Main Enrollment Target:

Junior high school graduates and above.

Management direction: master of automotive spraying and welding technology, automotive welding consultant.

Want to get a high-paying job in a more promising industry.

Professional characteristics: subject-based teaching, practical training to learn real technology, small class teaching, group training, pure skill refinement.

Welder training ** with the school, the length of learning, learning content related, welders go to professional schools to learn, with or without technology can be learned, from the basic training, generally set up a point welding, electric welding, plate and plate docking, pipe a tube butt welding training project, in the welding method to focus on training flat welding, vertical welding, hanging welding, upward welding and other welding alignment.

Most people will have questions about how much welder training is, how much does it cost, how much does it cost, whether it is expensive, etc., before choosing a training provider. Nowadays, due to the fierce competition in the industry, the training institutions on the market are scrambling to use various low-price, first-class and other marketing methods to recruit students, so there is no standard for the cost of domestic welder training tuition.

Generally speaking, learning electric welding should be based on the time of learning and the type of welding technology, such as general welding, argon arc welding training is relatively low, two welding, cellulose welding, etc.

Major enterprises for arc welding, carbon dioxide protection welding, argon arc welding professional and technical personnel are widely needed, the welding industry will continue to maintain a growth trend in the next 10 years, the market has a lot of experienced, excellent skills of excellent welder professionals monthly salary of more than 10,000, salary is very considerable.

According to the needs of the market, the school has a two-month welder all-round class, and the curriculum is very perfect, whether you have 0 basic learning or have a foundation and want to study. Learning adopts the integrated teaching mode of theory and practice, skills + certificates, customized training in cooperation with enterprises, integration of production and education, integration with enterprise employment, project standard card throughout the whole process of teaching, enrollment and signing of employment agreements, placement and employment upon completion, special welder technology is fast, and can be proficient in welding technology such as electric welding, argon electric welding, carbon dioxide gas shielded welding, etc.

Two months. Zero-based argon welding only takes two months to master if you study in a formal training school, and the targeted teaching will be arranged after the completion of the examination.

Advantages of argon electric welding:

1. Welding***.

According to the welding process qualification, the appropriate welding wire, tungsten electrode, welding process parameters and purity meet the requirements of the shielding gas, which can make the root of the weld get a good fusion, and when the radiographic flaw detection is carried out, the pass rate is obviously high.

2. High efficiency.

The same welder uses the argon electric joint welding process and manual arc welding process to weld the same weld, and the welding efficiency of the argon electric joint welding process is 2 to 4 times that of manual arc welding, and 1 to 2 times that of argon arc welding, which significantly shortens the construction period.

3. Low cost.

After comprehensive measurement, it is found that argon electric joint welding can reduce the comprehensive cost of construction by 10 to 20% compared with hand Liang Yugong arc welding, and can reduce the comprehensive cost of construction by 5 to 15% compared with argon arc welding, and the weld joint forming is good, the repair rate is low, and the comprehensive cost is reduced.

The application of argon joint welding is a high-pressure stainless steel pipe and grade weld connection with high cleanliness and engineering quality requirements, and is widely used in industrial and boiler pipe installation projects. With the development of the national economy, argon and electric welding of thin-walled stainless steel pipes will be a new trend in the installation of industrial and boiler piping systems. <>

1. Turn on.

1. Turn on the power switch on the front panel so that the power switch is in the "on" position. The power indicator is on. The fan in the machine starts to rotate.

2. The selection switch is divided into argon arc welding and hand welding.

2. Argon arc welding adjustment.

1. Put the switch to the argon welding position.

2. Open the valve of the argon cylinder and adjust the flowmeter to the required flow rate.

3. Turn on the power switch on the panel, the power indicator light will be on, and the fan in the machine will work.

4. Press the handle button of the welding gun, the solenoid valve works, and argon gas output begins.

5. According to the thickness of the workpiece, select the welding current.

6. The distance between the tungsten electrode of the welding torch and the workpiece is 2-4mm, press the button of the welding torch to ignite the arc, and the high-frequency arc discharge sound in the machine disappears immediately.

7. Pulse selection: the lowest end is no pulse, the middle is the medium frequency pulse, and the top is the low frequency pulse.

T 4T selector switch: 2T is ordinary pulse argon arc welding, 4T is full-function welding. Adjust the arc start current, current rise time, welding current, base current, current fall time, arc closing current and rear gas supply time according to the desired welding process.

The tungsten electrode of the welding torch is 2-4mm away from the workpiece. Press the welding torch switch, ignite the arc at this time, release the hand switch, and the current slowly rises to the peak current for normal welding. After the workpiece is welded, press the hand switch again, the current slowly drops to the arc closing current, and after the pit of the solder joint is filled, the hand switch is released, and the welding machine stops working.

9. Attenuation time adjustment: Attenuation time can be from 0 to 10 seconds.

3. Hand welding adjustment.

1. Place the switch in "hand welding".

2. According to the thickness of the workpiece, select the welding current.

3. Thrust current: under welding conditions, adjust the thrust knob according to the need, the thrust knob is used to adjust the welding performance, especially in the range of small current, it can be used with the welding current adjustment knob, which can easily adjust the size of the arc starting current, and is not controlled by the welding current adjustment knob. In this way, in the process of small current welding, a large thrust can be obtained, so as to achieve the effect of simulating a rotary DC welding machine.

Fourth, shut down. 1. Disconnect the main power switch.

2. Disconnect the control button of the meter box.