The difference between electric welding and hydroelectric welding, what is hydroelectric welding

Electric welding, with electrical energy as the general term for the type of energy welding, the energy situation includes: arc welding, resistance welding, induction welding, energy beam several types.

1. Arc welding: including electrode hand arc welding, submerged arc welding, tungsten argon arc welding, CO2 welding, MIG welding, MAG welding, plasma welding, etc.

2. Resistance welding: electroslag welding, spot welding, seam welding, projection welding, butt welding, high-frequency welding, soldering iron brazing, etc.

3. Induction welding: Induction brazing.

4. Energy beam: electron beam welding.

Electric welding in the narrow sense, which refers to electrode hand arc welding, is an incorrect terminology.

Hydroelectric welding, the name is incorrect.

Hydrogen and oxygen welding, also known as: water welding. It is a welding process similar to gas welding that uses electricity to decompose water into hydrogen and oxygen, which is used as gas to participate in combustion, and oxygen supports combustion to increase the flame temperature. High-power water welding machines can be used to weld and cut metals.

Electric welding is welded by connecting to an oxygen cylinder with electricity, and water and drought is welded by using electricity to start the gas effect and bubbling. (Generally speaking, there are many electric weldings now).

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.

The arc temperature of argon arc welding is generally between the plasma arc and the manual arc welding arc, the arc temperature is 9000-10000k, the plasma arc is 16000-32000k, the manual arc is 5000-6000k, the melting electrode argon arc welding arc temperature is 10000-14000k, and the oxyacetylene flame is 3100-3200k. Welding arc light causes myopia in the eyes; Noise causes hearing loss. 2: Electric welding is the workpiece and the electrode connected to the different poles of the power supply (positive or negative), the electrode and the workpiece instantaneous contact makes the air ionize to produce an arc, the arc has a very high temperature, about 5000-6000K, so that the surface of the workpiece is melted to form a molten pool, and the metal of the electrode is coated on the surface of the workpiece to form a metallurgical bond.

Electric welding is carried out on land, while hydroelectric welding is carried out in water.

Gas welding is generally a cutting effect, such as gas welding is used for the blanking and cutting of metal pipes, and it is generally cut with oxygen-acetylene, which can be cut and welded, and the operation methods are different.

Soldering is generally carried out with a welding torch and tin flux, mainly soldered together1, and the acetylene bottle cannot be placed horizontally.

2. There must be fixed measures for the two.

It is an electric welding operation that is carried out in water. The requirements for welders are relatively high, and there are special requirements for welding machines and welding rods.

Electric welding is a welding operation that uses the welding rod to melt the place where the metal parts need to be connected through the arc high temperature.

Gas welding is the use of flame to heat the metal and welding wire at the connection of the metal workpiece to melt it to achieve the purpose of welding. The commonly used combustible gases are mainly acetylene, liquefied petroleum gas and hydrogen, and the commonly used combustible gases are oxygen.

Electric welding, suitable for welding objects that require greater strength and higher strength. Gas welding is generally suitable for welding thin and light objects.

There are also many kinds of electric welding, generally speaking, electric welding refers to manual arc welding, and gas welding refers to oxyalkyne flame gas welding.

1. Arc welding is the use of electric energy into arc heat energy, the core temperature of the arc can reach 1w degrees, the welding rod and the base metal can be quickly dissolved into a liquid state, the two weldments are fused together, and the coating on the welding rod can produce protective gas at high temperature to protect the weld, so that it can form a qualified welding fusion.

2. The temperature of the oxy-acetylene flame for gas welding is about 3000 degrees, which is much lower than the arc temperature, so the heating time is long and the thermal impact on the base metal is much greater. In the general welding field, the performance is lower than that of arc welding, but it also has the advantages of flexibility and can not be replaced by arc welding that can be suitable for welding thin-walled parts.

3. The difference between electric welding and gas welding is that the heating method is different, the welding equipment used is different, the application occasions are different, and the weldments that are adapted are also different.

According to the different heating and pressurization conditions during welding, welding methods are usually divided into three categories: fusion welding, pressure welding and brazing.

1. Fusion welding is a method of heating the metal at the weldment joint to a molten state during the welding process, and generally completing the welding without pressure. During fusion welding, the heat source quickly melts the metal at the weldment seam and the filler metal added if necessary to form a molten pool, which extends with the movement of the heat source and forms a weld after cooling.

Fusion welding using electric energy can be divided into arc welding, electroslag welding, electron beam welding and laser welding according to different methods of electric heating. Fusion welding has a wide range of applications and is most commonly used in various welding methods, especially arc welding.

2. Pressure welding is a welding method that connects the seams of weldments together under pressure (heated or not). In the process of pressure welding, no filler metal is added. Pressure welding can be divided into resistance welding, high-frequency welding, diffusion welding, friction welding, ultrasonic welding, etc.

Among them, resistance welding is the most widely used.

Most pressure welding methods do not have a melting process, and there is no burning of beneficial alloying elements and the immersion of harmful elements into the weld as is the case with fusion welding. However, the welding conditions of pressure welding are harsh, and the application surface is narrow.

3. Brazing is a welding method that uses a material (brazing metal) with a lower melting point than the weldment to bond the weldment after melting, and connects the weldment seams together after cooling.

Electrical welding belongs to the fusion welding part, welding is the method of heating or pressurization, or heating and pressurization, with or without the use of filler metal, so that two pieces of metal are connected together to form a non-detachable permanent connection.

Difference Between Electrical Welding and Electric Welding:

1. The welding process is different.

Electrical welding: electrical welding belongs to the fusion welding part, welding is the method of heating or pressurization, or heating and pressurization, with or without the use of filler metal, so that two pieces of metal are connected together to form a processing process method that cannot be detached and permanently connected.

Electric welding: Electric welding refers to the use of electrical energy, through heating or pressurization, or both, and with or without filler materials, so that the weldment can achieve atomic bonding.

2. Welding tools are different.

Electrical welding: The tools used for hand arc welding are: welding tongs that clamp welding rods; arc gloves and masks to protect the eyes,** from burns; Remove the slag cleaning silver hammer and wire brush of the surface of the weld and the slag shell of Fengsong Chi.

Electric welding: The processing equipment used for electric welding is called electric welding machine. Check that the welding mask should be free of light leakage and damage. Welding personnel and auxiliary personnel should wear labor protection equipment.

3. Different welding methods.

Electrical welding: welding is divided into: pressure welding, fusion welding and brazing. What we call electrical welding in our daily life belongs to the fusion welding part.

Electric welding: welding methods are usually divided into three categories: fusion welding, pressure welding and brazing according to the different heating and pressurization conditions during welding.

Electric welding is based on the principle of electro-hydraulic arc prudence, which is to use the spine of the welding handle and the welded object to generate an arc to melt the welding rod, which is suitable for welding larger and higher strength objects.

Gas welding uses oxygen and acetylene to produce a high-temperature melting electrode, and gas welding is suitable for welding thin and small objects.

Hello dear, happy to answer for you. The answer to this Silver Belt question depends on your background, skills, and experience. The prospects for welders are generally good, as welding is an important industrial skill that is widely used in industries such as construction, bridges, structures, and various types of machinery manufacturing.

Welders have a very important position in the machinery industry, and they also need constant maintenance and repair, which is a very promising industry. The prospect of a plumber is also good, because a plumber needs to have an understanding of hydropower engineering, there is a lot of installation and maintenance work, and it is very important to install, renovate and maintain hydropower equipment. The above line potatoes are my personal opinion and I hope to help you.