-
In our country, welding operations need to be licensed, welders are the type of work that belongs to the access category, in the professional qualifications of skilled personnel, only five of the 81 types of work in the access category, welders are one of them, and the actual situation is that most of the industry practitioners are unlicensed operations. With the continuous standardization of technology and the relevant requirements of the industry, more and more people want to take a welding certificate, the advantage of the certificate is still very large, first of all, the salary of the certificate and the non-certificate are very different, often able to reach more than double or higher level. Therefore, the issue of short-term welder training has naturally become a concern for practitioners.
Welding as an industrial "tailor" is a very important means of processing in industrial production, the quality of welding plays a decisive role in the quality of the product, so, what is the future development of welding technology?
Industry outlook. With the development of production, 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. After entering the 21st century, welding is an important part of the manufacturing industry, and the rapid development, so it has brought unprecedented development opportunities to the welding industry.
At present, China consumes 300 million tons of steel every year (about tons of welded structure), and needs about 750,000 welding machines, and the welding industry will continue to grow in the next 8 10 years.
-
It's best to find a good master to get you started, and then practice more.
-
Welder is a special type of work, to hold a certificate to work, involving safety, no matter what to do, personal safety is the first, it is recommended that you go to a qualified training institution to learn to operate.
-
Hello! 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.
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. 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.;
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.
-
Electric welding is easier to operate than argon arc welding, and each has its own advantages. However, electric welding is widely used, and welders are also more common; TIG welding has few applications, but it must be very "popular" to find a job.
-
Electric welding is a special job, in fact, no matter what you do, you will have a future if you learn well. If you choose electric welding, you have to endure the feeling of smoke and fire, wear thick clothes in summer, and the harm of arc light radiation and soot, argon arc welding radiation can be 15 times that of hand welding, or even higher. Are you ready?
-
Summary. Hello, learning TIG welding is a thing that requires patience and perseverance, you can start with the basic knowledge, such as welding principles, welding processes, welding equipment, etc., and then slowly go deeper, practice more, practice more, and continue to accumulate experience, and finally master TIG welding technology. In addition, you can also seek professional guidance, such as an experienced teacher or friend, who can provide you with valuable advice and guidance to help you master TIG welding technology faster.
Hello, learning TIG welding is a thing that requires patience and perseverance, you can start with the basic knowledge, such as welding principles, welding processes, welding equipment, etc., and then slowly go deeper, practice more, practice more, and continue to accumulate experience, and finally master TIG welding technology. In addition, you can also seek professional guidance, such as an experienced teacher or friend, who can provide you with valuable advice and guidance to help you master TIG welding technology faster.
Hello, the teacher has expanded the skills of learning argon arc welding for you, and the skills are as follows: Hello, argon arc welding is a commonly used welding method, which can be used to weld metal materials and plastic materials. To learn TIG welding, you must first be familiar with the basic principles of TIG welding.
TIG welding is an arc welding method that works by forming an arc between two metal materials through the thermal effect of the arc, so that the two metal materials are melted and then cooled to form a fusion joint. To learn TIG welding, you must first be familiar with the basic tools of TIG welding, including welding machines, welding rods, welding guns, welding wires, and welding fixtures. Secondly, it is necessary to understand the basic operation steps of TIG welding, including cleaning the welding part, placing the welding fixture, checking the welding machine settings, placing the welding rod, welding and cleaning the welding part, etc.
Finally, it is necessary to learn the safety operation rules of TIG welding, including safety when using welding machines, safety when using welding rods, safety when using welding guns, safety when using welding wires, and safety when using welding fixtures.
Others who studied welding training are very good! I just can't.
How not to speak.
Hello, men can't help but say that they can't, first of all, we need to consider whether we are too impatient, we need to slow down the pace, adjust our mentality, make ourselves confident, and operate slowly, in addition, we need to spend more time to understand and operate when others are resting, and at the same time, we also need to consult the teacher, raise their doubts, and try to understand.
Am I too stupid.
Please advise. Hello dear, in my cognition, there are no ignorant people in this world, only lazy people, you just understand a little worse than others or you just haven't calmed down, you need to encourage yourself, constantly hint at yourself, and at the same time look for guidance from teachers or colleagues and friends, we don't dare to speak out, we should learn to be humble and teach, dear! Come on!
Believe in yourself!
-
The way for novices to learn TIG welding is:
1. First of all, master the specific requirements of manual tungsten argon arc welding skills such as pre-welding preparation, welding handle, wire feeding, arc initiation, welding and arc retraction.
2. Understand the principle, characteristics and classification of arc welding.
3. Master the preparation and welding methods before argon arc welding.
4. Master the defects and solutions of argon welding in the welding process.
5. It is suitable for basic welding personnel, whose weldments need to be tested non-destructively, and standard weldments with higher internal and external requirements.
TIG Welding Definition:
It is a welding method that uses inert gas argon as a shielding gas.
Features of argon arc:
1) The weld quality is high, because argon is an inert gas, does not react with the metal, the alloying elements will not be burned, and argon is not melted in the metal, the welding process is basically the process of metal melting and crystallization, therefore, the protection is better, and the weld can be obtained with purer and higher quality.
2) The welding deformation stress is small, because the arc is compressed and cooled by the argon gas flow, the arc heat is concentrated, and the temperature of the argon arc is very high, so the heat affected zone is small, so the stress and deformation during welding are small, especially for thin parts welding and pipeline root welding.
3) Wide range of welding, almost all metal materials can be welded, especially suitable for welding metals and alloys with active chemical composition.
-
Novices can first learn the basic methods of argon arc welding, let experienced masters teach them by hand, or they can query information online for self-study, and then practice on the spot.
Learn the basic methods of TIG welding:
1. Wire feeding: divided into internal and external wire filling. The outer filler wire can be used for priming and filling, which is to use a larger current, the welding wire head is on the front of the groove, the left hand pinched the welding wire, and constantly sent to the molten pool for welding, and the groove gap is required to be small or no gap.
The advantages are that the current is large and the gap is small, so the production efficiency is high, and the operation skills are easy to master. The disadvantage is that if it is used for priming, the operator cannot see the blunt edge melting and the reverse side residual height, so it is easy to produce unfused and undesirable reverse forming.
2. Welding handle: divided into crank and mop. The crank is to press the nozzle slightly on the weld, and shake the arm sharply to weld.
Its advantage is that the welding nozzle is pressed on the weld, and the welding handle is very stable in the operation process, so the weld is well protected, the appearance is very beautiful, the product qualification rate is high, especially the welding is very convenient, and the color of the very beautiful appearance can be obtained when welding stainless steel. The disadvantage is that it is difficult to learn, and because the arm shakes widely, it is impossible to weld where there are obstacles.
3. Arc initiation: arc initiation device (high-frequency oscillator or high-frequency pulse generator) is generally used, tungsten electrode and weldment do not contact to ignite the arc, contact arc initiation is used when there is no arc initiator (mostly used for construction site installation, especially high-altitude installation), copper or graphite can be placed on the weldment groove to ignite the arc, but this method is more troublesome, less used, generally with a slight stroke of the welding wire, so that the weldment and tungsten electrode are directly short-circuited and quickly disconnected and ignited the arc. The maximum current that a welder can output when welding an arc.
Each time the arc starts, the given voltage is increased for a short time, so that the arc current is larger and the arc is easy to start.
4. Welding: After the arc is ignited, it should be preheated at the place where the weldment starts for 3-5 seconds, and the wire feeding will start after the molten pool is formed. When welding, the angle of the welding wire and the welding gun should be appropriate, and the welding wire should be fed evenly.
The welding torch should move forward smoothly, swing left and right, be slightly slower on both sides and slightly faster in the middle. Pay close attention to the changes in the molten pool, when the molten pool becomes larger, the weld becomes wider or the concave appears, the welding speed should be increased or the welding current should be re-adjusted.
5. Arc retraction: If the direct arc retraction is easy to produce shrinkage holes, if it is a welding torch with an arc initiator, the arc should be intermittently retracted or adjusted to the appropriate arc retraction current to slow arc retraction, if there is no arc reducer welding machine, the arc will be slowly led to the side of the groove, do not produce shrinkage holes, such as shrinkage holes should be polished clean before welding. If the arc is at the joint, the joint should be polished into a bevel first, and then welded forward 10-20mm after the joint is fully melted, and then slowly close the arc, so as not to produce shrinkage holes.
-
Master the skills of manual tungsten argon arc welding pre-welding, welding handle, wire feeding, arc initiation, welding, and arc retraction.
1. Understand the principle, characteristics and classification of arc welding.
2. Master the preparation and welding methods before argon arc welding.
3. Master the defects and solutions of argon welding in the welding process.
4. It is suitable for basic welding personnel, whose weldments need to be tested non-destructively, and the internal and external requirements are to stare at the standard weldments with higher requirements.
The operation method of TIG welding:
Argon arc is a kind of operation with both left and right hands at the same time, which is the same as the left hand to draw a circle and the right hand to draw a square in our daily life, so it is recommended to carry out similar training for those who have just begun to learn argon arc welding, which is helpful to learn argon arc welding.
-
I think that argon arc welding is simpler than electric welding, because you can clearly see the molten pool, as long as you can contact the welding machine, self-learning is also simple, the current and technique are the most critical, the more you weld, the more proficient.
-
It's not hard to learn, auto repair school. It is also a very good choice to study automobile technical school and choose a technical school. Now the number of cars has approached 200 million, and there are still many employment directions in the automotive industry, from automobile manufacturing to the automotive after-sales service market.
The automotive after-sales service market includes auto sales, service consultancy, spare parts management, auto finance, insurance claims, used car trading, auto beauty and decoration, auto maintenance, and more.
It is recommended that you go to the formal school system to learn the technology comprehensively
1.Learning technology can be considered from your own interests and hobbies, after all, this is different from reading, learning technology to a certain extent determines your future job category, if you have a technology, then to the degree of good at which to develop, so that the speed of getting started, the corresponding salary will be a little better. Of course, if you don't have a particularly obvious skill or a back-to-back strength, develop the technique first.
2.First of all, think about your hobbies, what type of work you like to do, and what skills are required for that job, and then learn and cultivate.
3.Considering the development trend in the next few years or 5 years, we will explore hot industries or new industries, and there will be a shortage of talents in hot industries and new industries in the next few years.
4.Field trips, a detailed understanding of the school's training equipment, training situation, teaching content, campus environment and other aspects of the campus before making a choice. Studying in an automotive technical school, choosing a technical school is also a very good choice, and now enterprises are still very short of talents with skills and academic qualifications.
Now the number of cars has approached 200 million, and there are still many employment directions in the automotive industry, from automobile manufacturing to the automotive after-sales service market. The automotive after-sales service market includes auto sales, service consultancy, spare parts management, auto finance, insurance claims, used car trading, auto beauty and decoration, auto maintenance, and more.
It is recommended that you go to the formal school system to learn the technology comprehensively
1.Learning technology can be considered from your own interests and hobbies, after all, this is different from reading, learning technology to a certain extent determines your future job category, if you have a technology, then to the degree of good at which to develop, so that the speed of getting started, the corresponding salary will be a little better. Of course, if you don't have a particularly obvious skill or a back-to-back strength, develop the technique first.
2.First of all, think about your hobbies, what type of work you like to do, and what skills are required for that job, and then learn and cultivate.
3.Considering the development trend in the next few years or 5 years, we will explore hot industries or new industries, and there will be a shortage of talents in hot industries and new industries in the next few years.
4.Field trips, a detailed understanding of the school's training equipment, training situation, teaching content, campus environment and other aspects of the campus before making a choice.
It's very difficult, it's mainly a problem of the way of thinking, which is completely different from junior high school, and the way of thinking in high school should become agile, go deeper, think more, think through the problem, do the question thoroughly, if you can do these points, it will not be difficult, and you should listen carefully in class, mainly in science, you must take notes, and, if you can, prepare a wrong question book, and cut out the question if you can copy the question. As for self-study,,Self-study is estimated to be more difficult,Because the role of high school teachers is mainly to teach you thinking,The second is to teach knowledge,If there is no teacher's guidance, there will be a feeling of not understanding,But it's not impossible,Buy a tutorial book,As long as you can read it carefully,It should not be that big of a problem,
There is a foundation in music theory, the rhythm of musicality is very good, it should not be difficult to self-study with conditions like yours, as long as you persevere, it is recommended not to buy a book for the introduction of the March Pass, buy a thinner book, practice while watching, if you want to learn solo, buy a classical, buy a handful online, four or five hundred is very good, and you can practice. If you want to play and sing, you can buy a folk song, the solo with the missing horn is also good, it is recommended to buy a 41-inch one, **three to five hundred,, it is best to buy a piano to buy a piano together, there are guitar masters in the piano shop, and you can ask him to help you choose, but the price, some will pit people, he can buy five hundred and three hundred, but at least cut to four hundred! Tell him to send a pick, a capo, a primer, and a good set of strings. >>>More
1. The registration method for self-taught driver's license is actually similar to the process of applying for registration through a driving school, and you need to apply at the local vehicle management office. 2. Students should first go to the designated hospital to receive the driver's physical examination, and obtain the physical examination report after the physical examination. 3. Then you need to go to the photo studio to take a bareheaded color certificate**. >>>More
Self-learning is impossible, how to exert force, the correct punching posture, coordination, distance training, all need professional coaches to teach you, not to mention anything else, at any time, including punching need to protect the head of the boxing gloves, this many people can not do, punches out can not be returned, back did not return to the correct standing posture, many details must be solved by the coach for you, otherwise no matter how good the practice is, a real combat is Wang Baquan.
To be honest, it's a bit difficult because of the violin. >>>More