What is the difference between 2. Welding and argon arc welding

Argon gas is used for argon arc welding, and CO2 is used for secondary arc welding. The first difference between the two welding methods is the shielding gas. The difference between welding materials is that the second type of wire is coiled and the argon arc welding wire is long.

The difference in the weld is that the gap is clean and residue-free for TIG welding, and there is spatter slag for CO2 gas shielded welding. TIG welding is suitable for welding non-ferrous metals and alloy steels that are easy to oxidize, and is suitable for single-sided welding and double-sided forming, such as root welding, pipe welding, etc.; Tungsten argon arc welding is also suitable for thin plate welding, and secondary arc welding is used for welding iron, stainless steel, aluminum and other metals, which is widely used and basically replaces electric welding.

Secondary welding is called CO2 gas shielded welding, and TIG welding is called TIG welding. Secondary welding is fusion pole welding, whereas TIG is non-melting pole welding. The secondary welding has a large spatter and can be used to weld low carbon steel, low alloy steel, low alloy high strength steel, etc.

TIG generally welds thin sheets or root welds, and AC power can weld aluminum.

TIG welding is suitable for welding non-ferrous metals and alloy steels that are easy to oxidize (aluminum, magnesium, titanium and their alloys and stainless steel are mainly used for welding); Suitable for single-sided welding and double-sided forming, such as root welding and pipe welding; Tungsten TIG welding is also suitable for thin plate welding.

Secondary welding (gas shielded welding, generally carbon dioxide shielded welding and argon shielded welding) does not require flux during welding, and there is gas shielding directly around it, which is not easy to produce welding slag and is welded firmly. The solder joints are uniform and not easy to oxidize. It can weld iron, stainless steel, aluminum and other metals, which is widely used and can basically replace electric welding.

The disadvantage is that there is more metal spatter in the welding process, and the appearance of the weld is rough, especially if the welding parameters and specifications are not properly matched, the spatter is more serious. It cannot weld metal materials that are easy to oxidize, and is not suitable for welding in windy places;

Argon arc welding is the use of argon as the protective medium, carbon dioxide gas shielded welding used in the protective medium of carbon dioxide gas shielded welding.

According to different electrode materials, argon arc welding is divided into two types: tungsten argon arc welding and melting pole argon arc. CO2 gas shielded welding has only the melting pole.

in production applications. TIG welding has a wide range of materials, and almost all materials can be welded. Carbon dioxide gas contains mainly used for carbon steel and low alloy steel welding.

1. What is the difference between argon arc welding and secondary welding?

1. The electrodes used are different. The former uses tungsten as the electrode, and the latter uses a fine welding wire as the electrode.

2. The shielding gas is different. The former generally uses argon, and the latter uses carbon dioxide as a shielding gas.

3. The scope of use is different. The former can weld metal substances, such as aluminum-magnesium alloys, etc., but it is not possible to weld these non-ferrous metals with secondary welding.

2. What are the characteristics of argon arc welding?

1. Argon arc welding can bring better protection, because it can isolate the air, will not react with metal substances, and will not dissolve metal, so in the whole welding process, the operation is relatively simple, and finally it can bring better welding results.

2. Because the tungsten arc is used, it is relatively more stable, and even in a small current, it can be stably burned without causing welding errors. This is especially true for the connection with thin plates, such as stainless steel.

3. There is no current through argon arc welding, there will be no splashing sparks, easy to polish, can automatically remove the oxide film on the surface, and is more suitable for some metal welding with strong activity.

3. What are the precautions for welding safety?

1. Personal safety must be protected during welding operations, because it is an open flame operation, and the approval procedures need to be obtained first, and there can be no flammable and explosive items around.

2. The staff needs to go through unified training before they can enter the construction site, and they must be fully armed and pay attention to their own safety.

3. If welding and cutting is carried out at a high place, it is necessary to wear a safety belt, and it is necessary to do a good job of fire prevention and take care of it to prevent welding tools from falling and injuring passers-by.

2. The shielding gas is different: argon arc welding generally uses argon, and carbon dioxide is used as the shielding gas for secondary shielding welding.

3. The scope of use is different: argon arc welding can weld metal substances, such as aluminum-magnesium alloy, etc., but it is not possible to weld these non-ferrous metals with secondary welding.

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The differences between argon arc welding and secondary welding are as follows:

1. The electrodes used are different. TIG welding refers to the use of tungsten electrode as the electrode, and the second welding uses the fine wire of automatic wire feeding as the electrode.

2. The shielding gas is different. Argon arc welding uses argon as the shielding gas, and secondary shielding welding uses carbon dioxide as the shielding gas.

3. The objects that can be welded are different. TIG welding can successfully weld some chemically active non-ferrous gold pre-dispersed genera, such as aluminum, magnesium and alloys, which are not available in secondary welding.

The difference between two-shield welding and argon arc welding is as follows:

First, the use of gases is different.

1. Second shielded welding: carbon dioxide gas shielded welding is used.

2. Argon arc welding: It is a welding technology that uses argon as a shielding gas. It is also known as argon gas shielded 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.

Second, the principle is different.

1. Second welding: when the thickness of the workpiece is greater than 6mm, in order to ensure the welding penetration strength, the butt edge of the plate should be cut V-shaped or X-shaped, the groove angle is 60°, the blunt edge p is 0 1mm, and the assembly clearance B is 0 1mm; When the thickness of the plate is 4 mm, the butt edge of the thicker plate should be skewed.

2. Argon arc welding: the working principle of the main circuit, auxiliary power supply, drive circuit, protection circuit and other aspects is the same as that of hand arc welding.

Third, the application is different.

1. Second welding: high welding productivity, good crack resistance, small welding deformation, large range of adaptable deformation, and can be welded with thin plates and medium and heavy plates.

2. Argon arc welding: TIG welding is suitable for welding non-ferrous metals and alloy steels that are easy to oxidize, mainly using Al, Mg, Ti and their alloys and stainless steel; It is suitable for single-sided welding and double-sided forming, such as root welding and pipe welding; Tungsten TIG welding is also suitable for thin plate welding.

Argon arc welding and secondary welding are both commonly used metal welding methods, and the differences between the two are:1Welding method:

TIG welding is a single-sided welding method, which is usually welded only on the welding surface; The second welding is a double-sided welding method, which needs to be welded on two welding surfaces at the same time. 2.Welding Materials:

Argon belt arc welding usually uses pure tungsten electrodes and inert gas (such as argon) as the welding material, while secondary welding usually uses welding wire and coating as the welding material. 3.Welding effect:

The weld quality of argon arc welding is high, the weld strength is high, the porosity is low, and the weld appearance is beautiful, and it is often used for metal welding with higher requirements for weld quality. Because the second protection welding uses welding wire and coating, the quality of the weld is generally slightly worse than that of argon arc welding. 4.Welding Attendant Range:

TIG welding is suitable for different types and thicknesses of metal welding, such as stainless steel, aluminum alloy, etc.; The second guarantee welding is more suitable for a large number of metal welding, such as automobiles, machinery and other manufacturing industries. To sum up, argon arc welding and secondary welding are different in terms of welding methods, materials, effects and scope of application, and the choice of which welding method should be selected according to actual needs and requirements.

Hello argon arc welding, argon is used, and CO2 is used for secondary welding, and the difference between the two welding methods is first of all the difference in shielding gas. The difference in welding consumables is that disc wire is used for secondary welding, and long wire is used for argon arc welding. The difference between the welds is that the gaps of TIG welding are clean and there is no residue, and carbon dioxide gas shielded welding has spatter welding slag.

TIG welding is suitable for welding non-ferrous metals and alloy steels that are easy to oxidize, and is suitable for single-sided welding and double-sided forming, such as root welding and pipe welding; Tungsten argon arc welding is also suitable for thin plate welding, while second welding is used for welding iron, stainless steel, aluminum and other metals, which is widely used and basically replaces electric welding.

The full name of the second shield welding is carbon dioxide gas shielded welding, and the full name of argon arc welding (TIG) is tungsten argon arc welding. The second weld is the molten electrode welding, while the TIG is the non-melting electrode welding. Second, the welding spatter is larger, and it can weld low carbon steel, low alloy steel, low alloy high strength steel, etc., TIG generally welds thin plates or does root welding, and AC power can weld aluminum.

TIG welding is suitable for welding non-ferrous metals and alloy steels that are easy to oxidize (at present, AL, MG, TI and their alloys and stainless steel are mainly used for welding); It is suitable for single-sided welding and double-sided forming, such as root welding and pipe welding; Tungsten TIG welding is also suitable for thin plate welding.

Second, it does not need flux when welding, it is directly protected by gas around the slag, which 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.

1. The electrodes used are different. The former uses tungsten as the electrode, and the latter uses a fine welding wire as the electrode.

2. The shielding gas is different. The former generally uses argon, and the latter uses carbon dioxide as a shielding gas.

Second, welding is better.

Argon arc welding and secondary welding are commonly used welding methods, in the actual application, it is still necessary to choose the appropriate welding method according to the welding material, requirements, occasions, etc. For example, although the welding efficiency of argon arc welding is low, the welding quality is better than that of secondary welding, the welding heat input is small, and the welding deformation is small.

So depending on what the welding requirements require, then choose the right welding method.

Welding preparation: 1. Before welding, the joint cleaning requires that the burrs, oil, rust and oxide scale that affect the quality of the weld within 30mm on both sides of the groove must be cleaned.

2. When the construction environment temperature is lower than zero or the carbon equivalent of the steel is greater than that, and the structural rigidity is too large, and the object is thicker, preheating measures should be used before welding, the preheating temperature is 80 100, and the preheating range is 5 times the thickness of the plate, but not less than 100mm.

3. When the thickness of the workpiece is greater than 6mm, in order to ensure the welding penetration strength, the butt edge of the plate should be cut V-shaped or X-shaped, the groove angle is 60 °, the blunt edge p is 0 1mm, and when the plate thickness difference is 4mm, the butt edge of the thicker plate should be skewed.

The above content reference: Encyclopedia - two welding protection.

There is no good or bad between the second protection welding and argon arc welding, and each has its own characteristics. The second welding efficiency is high, and the argon arc maneuverability is good.

The efficiency of the second welding is high, and the argon arc welding is relatively fine.