Second, what is the prospect of the industry? Is it good to find a job?

It's easier to find a job. But at the level of entry, his salary is not as high as he imagined, about 200 yuan a day. If it is said that it is to get the relevant qualification certificate for taking the second guarantee welding, it is different, and the prospects are relatively broad, about 300 to 400 yuan a day.

Second, welding. The prospect is not bad, it is easy to find a job, and the following is the way to find a job.

1. Through the introduction of acquaintances is the way for many migrant workers to find a job, who has a job in their hands to call acquaintances to do together, which factory is recruiting people, which factory makes more money, everyone introduces each other This method is more reliable? And simple.

2. Talent market.

Finding a job through the talent market is also a way to go.

3. Recruitment**, there are now many recruitment software specifically for migrant workers and construction workers.

It is to design software that meets the needs of construction workers according to their group characteristics. Simplify the procedures for recruiting and finding jobs, and effectively solve the problem of migrant workers finding jobs online.

4. Distribution centers, under high-speed bridges at some intersections or next to construction sites.

5. Inquiring, this method is relatively stupid, you need to go outside to inquire, if there is a recruitment, ask if there is a suitable one.

It's still good, if the technology is excellent, five or six hundred a day is no problem, it depends on your own situation, if the technology is good, it is easy to find a job anywhere.

Nowadays, there is a shortage of welders, especially in some factories and some construction industries, and the industry prospects are also very good, and it is easy to find a job. As long as you are not afraid to endure hardship.

Second, the welding is quick to get started. At present, the demand for welders in shipyards is still very large, generally 4000 to 6000 a month. Generally, it may be about 20 yuan an hour.

The potential of the second protection welding is great, compared with the electrode arc welding, the current of the second protection welding is larger, and the welding continuity is better, because of the automatic wire feeding device. And it can cope with welding at all angles, flat welding, vertical welding, and horizontal welding. Jobs should be easy to find, and there is a large demand for second-guarantee welders in the field of heavy equipment manufacturing.

For example, shipyards, boiler factories, container manufacturing.

It's good, no matter what industry, as long as you like it, it's the best choice.

It can be said that this industry is really hard, so relatively speaking, the current students are not willing to learn, if you learn this major, the technology is good, then the future prospects are still very good, after all, the salary of this job is still very high,

The matching formula between the welding current and the welding voltage is u=14+. (1) When the arc voltage is short-circuited, the arc voltage can be calculated by the following formula:

U = In this case, the welding current is generally less than 200A (2) When the current is more than 200A, the arc voltage is calculated according to the following formula. U=<200a, u=(14+>200A, u=(16+

1. When the voltage is large, the welding wire melts quickly, the wire feeding cannot keep up, the spatter becomes less, the particles are very large, and the sheet metal thin iron sheet is easy to burn through, and the sound is loud.

2. The arc is commonly said to be the part that produces bright light, and the voltage is the speed of melting the welding wire, which must be matched with the appropriate wire feeding speed to improve the welding efficiency.

3. The inductance is the arc thrust, which is low and the melting depth is low, the spatter is small, and the inductance is large, on the contrary, the inductance has little effect in the second protection welding, and it plays an obvious role in electric welding and argon arc welding.

4. Three adjustment buttons! Voltage, current, yarn speed. The speed of the filament is fast, the current and voltage will increase, otherwise the unmelted obvious top filament, and the splash is very large, and the sound is crackling.

5. The current and voltage ratio is good, the sound is the same as the beep, and the solder joint should be pressed when welding, the previous solder joint is pressed 2/3 of the last solder joint, if the solder joint is in a red state, it is necessary to wait for a while to prevent burn-through.

6. If you encounter a vertical weld and a place where the strength is not high, it is recommended to reverse flow, which can make the weld smooth and flat so that the molten iron can go down, but the current and voltage should be slightly larger, or the weld can not be welded.

7. If the current is too large and welded on the thin iron sheet, it will generally appear as a lump and the weld is very high, and the voltage is too large to burn through, or the solder joints are lumpy.

The second welding is carbon dioxide protection welding, the welding wire is constantly automatically fed at the same time, carbon dioxide gas is constantly sprayed to the weld, which plays the role of isolating the air, avoiding the oxidation of molten iron, so that it can achieve higher strength, it is higher than the welding strength of general arc welding, and the quality is much better.

22 shielded welding (gas shielded welding, usually carbon dioxide shielded welding and argon shielded welding) It does not need flux when welding, it is directly protected by gas around, it is not easy to produce welding slag, and the welding is firm. And the solder joint is uniform, not easy to oxidize, it can weld iron, stainless steel, aluminum and other metals, it is widely used, basically replacing electric welding. The disadvantage is that there is more metal spatter in the welding process, and the weld shape is rougher, especially when the welding parameter specification is not properly matched, the spatter is more serious; It is a metal material that is easy to oxidize and is not suitable for welding in windy places; The arc light in the welding process is strong, especially when high-current welding is used, the radiation of the arc is strong, so special attention should be paid to the labor protection of operators; The equipment is more complex and requires a professional team to be responsible for maintenance.

Although the demand for the second guarantee welding of the Southern Shipyard is high, it generally does not recruit migrant workers, and no one introduces it. Basically, Baotou led the team, and his hometown brought apprentices.

Regarding the treatment, if there is only two welding, the salary will not be high, and the probationary period of 1000-2000 will not exceed 3000 after 3-5 years. And it is no weekend, no holiday, and is billed on a daily basis. or billed hourly.

Although state-owned shipyards are well paid and well-paid, they are overcrowded and require many formal qualifications. So the shipyard won't work, don't go.

Second, the welding (full name of carbon dioxide gas shielded welding) process is suitable for low-carbon steel and low-alloy high-strength steel, and various large-scale steel structure engineering welding. The direction of employment is not clear.

I feel that the current stud welding is mainly based on manual stud welding4) Nut projection welding. In addition to the mechanical bolt connection between the powertrain and the body, the battery fixing block, seat belt fixing block, fuel tank fixing block, etc. are also connected in the same way

In order to ensure sufficient connection strength, the method of projection welding is generally adopted....

There is no exact answer to this question, it depends on the technology, as long as the technology is good, one of the two welding and argon arc welding can earn high wages. Whatever you do, you have to do it!

Welding is an important part of the manufacturing industry, and the rapid development, so to the welding industry has brought unprecedented development opportunities, welding, argon arc welding, welding and other technical types of work in the increasingly difficult employment situation is still outstanding, so it has attracted many people to choose to enter the welding industry. Because people see the bright employment and development of the welding industry, the employment prospects of the welding profession are very good!

With the development of production and the progress of science and technology, and widely used in aerospace, aviation, nuclear industry, shipbuilding, construction and machinery manufacturing and other industrial sectors, welding has become an independent discipline, welding technology is an indispensable means of processing, the length of the entire pipeline weld is at least 15,000 kilometers, the number of welded joints is more than 350,000, the total length of about 4,300 kilometers of gas pipelines, taking the West-East Gas Transmission Project as an example, it is simply impossible to imagine how to complete such a project, leaving welding, The development of the welder's profession in foreign countries is to improve the degree of specialization, and the operation is becoming more and more simplified, automated, integrated, which is corresponding to the high development of foreign welding technology, its degree of automation and control accuracy is high, the welding quality is stable, and automatic welding equipment is widely used abroad, which requires welders not only to master the basic knowledge and professional skills of welding, but also to be able to use and operate the advanced and sophisticated welding equipment and control and testing instruments of Shenzhen welding training, therefore, Welders often have to go through a long period of systematic and comprehensive training and education in order to be competent for the work of electric welding, which has brought unprecedented development opportunities to China's welding industry, and also provided a stage and opportunity for the majority of welder practitioners to display their talents, and welding has developed rapidly as an important part of the manufacturing industry.

I think manual welding is good, arc welding uses a variety of methods to protect the weld pool and prevent contact with the atmosphere. The heat energy is provided by the electric arc. As with MIG welding, the electrode is self-consuming.

The metal electrode is coated with a mineral flux, and when the flux melts, a welding slag (coating) is formed to cover the welding pool. The coated flux releases a gas-shielded weld pool containing alloying elements to compensate for alloy losses in the alloy pool.

The answer is, of course, electric welding, which has a wider range of applications than two welding, and it is better to find a job, the most important thing is to master the real technology.

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The principle of the second welding is that the welding wire and the weldment are used as two electrodes to generate an electric arc, and the heat of the arc is used to melt the metal, and carbon dioxide gas is used as the shielding gas to protect the arc and the molten pool, so as to obtain a good welding joint.

1. The full name of the second protection welding is: carbon dioxide gas shielded welding, which is a welding method.

2. This welding method has become one of the most important welding methods for ferrous metal materials.

3. Features: 1) Low welding cost. Its cost is only 40 50% of submerged arc welding and electrode arc welding.

2) High production efficiency. Its productivity is 1 4 times that of electrode arc welding.

3) Easy to operate. Open arc, no limit to the thickness of the workpiece, can be welded in all positions and can be welded downward.

4) High crack resistance of welds. The weld is low in hydrogen and also has less nitrogen.

5) The deformation after welding is small. The angular deformation is 5 thousandths, and the unevenness is only three thousandths.

6) Small welding spatter. Welding spatter can be reduced when ultra-low carbon alloy or flux-cored wires are used, or AR is added to CO2.

The core technology of the second welding is the matching adjustment of current and voltage, and novices can first use the matching current and voltage to weld, and after being familiar with it, learn the matching adjustment of current and voltage.

Novices can't adjust the matching of current and voltage, the main reason is that they don't know the relationship between the two, and they don't know what role they play.

The current is to control the penetration depth of the weld (the current can also be understood as the wire feeding speed, the larger the current, the more welding wire is sent out per unit time under the condition that the voltage is unchanged, provided that the voltage is enough to melt the welding wire), and the voltage is to control the melting width.

Now that I know what each of these two does, I'll say a dumber but most effective solution:

The first step is to adjust the current knob to the minimum, adjust the voltage knob to the maximum, test welding, do not move the voltage knob at this time, gradually increase the current, and stop it until it can be welded normally;

The second step, in turn, is to adjust the current knob to the maximum first, and then adjust the voltage knob to the minimum, test welding, do not move the current knob, gradually increase the voltage, until it can be welded normally and stop;

I believe that after such debugging, you should already feel the effect of current and voltage.

The third step is to minimize the current and voltage knobs, and gradually increase the voltage and current (you need to adjust it repeatedly in the process) until you find the match that you think is the best weld formed, the softest sound, and you can control it yourself.

Yes, the prospects are good, after all, it depends on technology to eat.

Manual arc welding is the foundation, if there is no foundation of the second welding is also very easy to learn, no need to change the welding rod, after the arc is lowered to move the welding torch forward, practice for an hour or two will be welded, but to weld well, you have to work hard.