What is the main thing to learn about electric welding? How long does it take?

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Electric welding technology is an operation method that uses 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. Welding has a wide range of applications and can be used for both metals and non-metals.

The learning content generally includes: welding protection and safety, welding copper brazing, manual arc welding, carbon dioxide gas shielded welding, gas cutting and plasma cutting, etc.;

Learning Style: Subject-based teaching; practical training; Pure skill refinement; Small class group teaching and training;

Employment direction: technical direction, management direction, and business direction to develop into welding experts, technicians, etc.

Welding technology is pure skills learning, focusing on practical hands-on operation, when choosing a school, you can be compared from the following aspects:

First of all, the well-equipped school is good, the requirements for the equipment of the second welding technology are relatively high, the electrical welding major is divided into many types, and the corresponding equipment is also divided into many types, we must learn the electrical welding major, and have a detailed understanding and operation experience for each equipment.

Secondly, the school with many practical training courses is good, and unlike traditional education, electrical welding is a professional that pays attention to practical training, and it is difficult to master the essence of technology with simple theoretical courses or courses with many theories. To learn electrical welding, you must go through a lot of practical training to get started. Therefore, when looking for a school, you should also look for a school with a lot of practical training.

Thirdly, the school with a high pass rate needs to be certified to learn electrical welding, and the school with a high pass rate indicates that the comprehensive strength of the school is relatively strong.

1. Arc welding.

Arc welding is currently the most widely used welding method. It includes: hand arc welding, submerged arc welding, tungsten gas arc welding, plasma arc welding, MIG/MAG welding, etc.

2. Resistance welding.

This is a class of welding methods that use resistance heat as energy source, including electroslag welding with slag resistance heat as energy source and resistance welding with solid resistance heat as energy source. Resistance welding includes: resistance spot welding, coating welding, seam welding, high-frequency welding, flash butt welding.

3. High-energy beam welding.

This type of welding method includes: electron beam welding and laser welding.

4. Brazing. The energy source for brazing can be either the heat of chemical reaction or indirect heat. It is the use of the melting point lower than the melting point of the welded material as the brazing metal, after heating to melt the brazing metal, by the capillary action of the brazing metal and into the joint contact surface of the gap into the wetting metal surface, so that the liquid phase and the solid phase diffuse each other to form a brazing joint.

5. Other welding methods.

These welding methods belong to different degrees of specialization, and their scope of application is narrow. It mainly includes electroslag welding and high-frequency welding with resistive heat as the energy source; Gas welding, pneumatic welding, and first-class welding with chemical energy as the welding energy source; Friction welding, cold pressure welding, ultrasonic welding, and diffusion welding with mechanical energy as the welding energy source.

Welding training is generally seven days, as long as you learn carefully, including theory and practice, you can basically learn, and you can get a welder certificate, although not too fine, the basic work with low requirements can still be competent, if you don't need a certificate, you can learn the basic operation in two or three days, but there is no theory, can not be qualified for the work with high welding requirements.

How do you learn to be a welder?

We need to know what electric welding is first? Electric welding is a welding operation that uses the welding rod to melt the metal parts at high temperature through the arc to the place where they need to be connected.

If you want to learn electric welding, you should first learn mechanical drawing, be able to understand drawings and welding symbols, understand how to weld, etc., and master the material structure, welding principle, operation process and actual operation methods and testing.

When welding, the welding rod and the iron plate are kept at an angle of 45 degrees, which is conducive to the uniform distribution of molten iron, and the weld is smooth.

When welding, the hand needs to be kept stable and welded, and the arms must be clamped to avoid shaking, so that the welding can be uniform and beautiful. When welding, it is generally used to weld zigzag and dot type, so that the welded seam texture is clearer.

When performing the upward welding operation, because the molten iron is easy to fall, it is necessary to take the form of spot welding, so that the sintering will be more firm. At the end of the circle, when the electrode is moved to the end of the weld, it should move in a circle at the arc pit until the arc pit is filled and then the arc is broken.

When the electrode is replaced or the arc is stopped temporarily, when the electrode is moved to the end of the weld, it stops at the arc pit for a short time, slowly raises the arc, and then leads to the base metal groove at the edge of the weld. At this time, the molten pool will gradually shrink, and there will generally be no defects after solidification.

The above are just the basic theoretical knowledge and skills of electric welding, but these need to be mastered slowly in theoretical and practical teaching, and skillfully complete a process of technical requirements.

In this process, first of all, we must learn with an open mind, remember the key points of the technology, the difficulties, and the techniques needed in welding, and the basic knowledge must be learned and practiced by heart in order to meet the basic requirements of welders.

1. Welder is a better type of technical work.

2. Nowadays, young people rarely learn electric welding, and welding is hard work and tiring work in the impression of ordinary people, but in fact, this understanding is one-sided. Modern welders need a lot of theoretical knowledge and rich practical experience, and people with certain knowledge are easy to become good welders.

3. The salary of a good welder is very high. The monthly salary of welding masters is generally about 10,000 yuan.

4. It is easier for welders to find jobs, and a large number of good welders are needed in shipyards, metal structure factories, petrochemical industries, infrastructure projects, etc.

5. The light radiation and smoke in welding have adverse effects on the body, and labor protection should be done according to the regulations.

If you want to apply for a welder training class to learn welders systematically, you will not only teach welding, usually electric welding, carbon dioxide protection welding, argon arc welding, argon electric welding, oxygen cutting, plasma cutting and so on.

Generally, the welder apprentice can basically be out of school in three months to half a year. Of course, during this period of time, the main thing to learn is some basic operational skills, and if you want to increase your proficiency in the later stage, you still have to rely on actual work experience to accumulate, as for the final level, it still depends on each person's personal comprehension ability and level.

First, the skills that welders should have.

1. The basic operation of manual arc welding is what every welder must know, and at the same time, it is necessary to master the corresponding operation and basic essentials of back welding.

2. It is necessary to learn the corresponding operation techniques of flat fillet welding and vertical fillet welding.

3. It is also necessary to learn and master the welding methods of commonly used metal materials.

4. Must be proficient in the basic operation techniques of gas welding and gas cutting.

5. In the usual practical work, we should also learn to use the correct flame adjustment method and know the application range of the flame in depth.

Second, the welder's job responsibilities.

1. Carry out welding work on the corresponding products arranged by the supervisor every day.

2. Carry out corresponding maintenance and maintenance of the machine before and after the shift every day, and also organize the site for 5S.

3. Follow the MCG process to carry out standard operations during construction, and also carry out quality inspection on the input parts, and also ensure the quality of the output assembly and assembly, and report the product defects to the section leader.

4. Report the failure of equipment and tools to the section leader, and ensure the correct placement of tools after the daily operation.

After the completion of the welder apprenticeship, only after having certain skills and obtaining the corresponding certificate, can he hold the certificate to work, so as to carry out the corresponding welding work.

In the case of no foundation, in the case of practical operation, you will definitely be able to learn within three days, but just learning will not be too exquisite, if you want to learn the technology is particularly good, for example, in the case of welding pressure vessels, there are no two or three months can not reach that technical level.

With the development of production and the progress of science and technology, welding technology welding has become an independent discipline, welding is widely used in aerospace, aviation, nuclear industry, shipbuilding, construction and machinery manufacturing and other industrial sectors, in China's economic development, welding technology is an indispensable means of processing, but the current training of welding professionals is far from meeting the needs of social employment. There are many kinds of welders, such as general welding, argon arc welding, second guarantee welding, etc., and the welder is proficient, and it is also a good craft for the peak of technology.

China is now implementing an employment access system, and you must have the corresponding certificate to take up a job. Some people choose to go to technical school and re-enter the workforce after graduation, which fully demonstrates the importance of skills. Some graduates with low academic qualifications do not learn skills when they are young, and they earn money from hard work, with very low salaries and fewer and fewer employment opportunities.

Students with a skill can become excellent skilled workers after graduation, and as they gain experience, they will accumulate more and more income and employment opportunities.

It's easy to learn or not, mainly to look at personal understanding and the hard work you have put in.

It's easy to learn, as the saying goes, electrical welding can be learned in two and a half days.

It's hard to say.

If you are studious, it will only take about a month.

There are many kinds of electrical welding. Hand welding, argon arc welding, secondary protection welding, submerged arc welding, gas welding, etc.

The simplest should be the most commonly used handle welding. Its principle is very simple, that is, the short circuit of the positive and negative electrodes of the welding machine is used to generate huge arc heat to melt the electrode and weldment. The learning cycle can be long or short. Easy to understand, hard to pretty!

It's easy to learn, you can learn it in ten days and half a month.

If you want to learn well, it will definitely take a long time to practice, after all, hand welding is the foundation.

The rest are about the same, and the simplicity should be two welding. Its full name is carbon dioxide gas shielded welding. A little bit of hand-handling welding basics, this is very easy.

Submerged arc welding is also very simple. A little basic in electric welding, if you don't have it, let the master take you twice, and know how to adjust the current and voltage.

Sub-arc welding is also relatively simple. At the very least, the hand-held welding foundation should be better. It takes about two or three months to learn.

Generally, there are very few things that are full argon, and most of them are argon electric welding. Gas shielded welding and gas welding, there are many of them, generally more formal companies, enterprises. There are also age restrictions.

There are very few people above the age of 50. If so, it should be management. Please forgive me for saying something bad.

I've been a welder for 10 years now, and I didn't know anything when I first learned it. Fortunately, the welding rod and materials in my factory can be used casually, I will take the welding handle to find the feeling, now it is an intermediate worker, in fact, this thing is nothing, as long as you can pick up the welding handle, don't be afraid of arc light and welding slag hot, bold welding, you can find the feeling in less than two days, and then you can step by step, first thick plate flat welding, then thin plate, vertical welding and vertical welding and finally learn. Don't rigidly learn other people's movements, how to do what you are comfortable with.

Also pay attention to safety, to prevent electric shock, the no-load voltage of the welding machine is only about 70 volts, but the current is very large, we must pay attention to the damage of the wire and the welding handle do not touch the body. I hope it can help you, and I wish you a speedy recovery. You are very welcome to come to me, we are all together.

The point is to be safe!