Difference Between Magbe and Mag Be

The second one is often placed at the beginning of a sentence, and the first one is placed after the subject.

It should be: maybe

英] [me bi] [美] [mebi]adv

Maybe; Possible; Probably;

n.Uncertain;

Example sentence]maybe she is in love

She's probably in love.

The two are not the same, in simple terms, it can be said that one represents the plane and the other represents the three-dimensional.

For example, if you measure the distance between two points, if you select x, it means that the distance in the x direction is measured, and y, z are similar; Mag is selected, and the spatial distance between two points is measured: (x 2+y 2+z 2) under the root number.

1. The protective gas is different.

MAG, i.e., molten polar active gas shielded welding, adds a certain amount of active gas, such as O2, CO2, etc., as a shielding gas to the inert gas.

MIG, or Molten Inert Gas Shielded Welding, uses an inert gas such as argon (AR) or helium (HE) from a solid core wire as the arc medium.

2. The scope of application is different.

MAG is mainly suitable for the welding of ferrous metals such as carbon steel, alloy steel and stainless steel, especially in the welding of stainless steel.

MIG is particularly suitable for welding materials such as aluminium and aluminium alloys, copper and copper alloys and stainless steel. There is almost no oxidative burn-out loss during the welding process, only a small amount of evaporation loss, and the metallurgical process is relatively simple.

3. The cleaning requirements before welding are different.

mag, the pre-welding cleaning requirements are more relaxed.

MIG, the pre-welding cleaning requirements are strict.

4. The welding power supply is different.

MAG, welding power supply can be DC and AC power.

MIG, alternating current is not applicable, because the melting of the wire is not equal on each half-cycle.

The difference between Mig Mag welding.

In the case of Mig Mag welding, the arc is generated by the power supply passing through the welding torch between the fed wire and the workpiece. The arc fuses the material being welded and the wire, resulting in a weld. During the entire welding process, the wire feeder continuously feeds the wire through the welding torch.

The torch also shields the weld seam**.

The difference between the MIG and MAG welding methods is that MIG (Metal Inert Gas) welding uses an inert shielding gas, which is not involved in the welding process, while MAG (Metallic Reactive Gas) welding uses a shielding gas that is involved in the welding process.

Shielding gases usually contain reactive carbon dioxide or oxygen, which is why by far MAG welding is more common than MIG welding. In fact, the term MIG welding is often used in conjunction with MAG welding by accident.

Today, MIG MAG welding is used in almost every corner of the welding industry. The largest users are heavy and medium-sized heavy industries, such as shipbuilding, steel structure manufacturers, pipes and pressure vessels, as well as repair and maintenance operations.

Mig Mag welding is also commonly used in the sheet metal industry, especially in the automotive industry, in body shops and in small industries. It is also common for hobbyists and home users to own a Mig Mag welder.

The biggest difference between MIG and MAG is the nature of the shielding gas, MIG (inert gas arc welding, such as AR or HE) and MAG (MIG, such as argon, helium, CO2 or a mixture of these gases).

There is a question in the welder's theory exam: CO2 shielded welding is essentially MG welding. I didn't find a satisfactory answer to the question of MG welding on the Internet, my understanding is this, MIG's I refers to inertness, MAG's A refers to activity, and all of them are removed to MG welding, that is to say, MG welding includes MIG and MAG, which is a general term, and CO2 is an active gas, so it is more accurate to say that carbon dioxide shielded welding belongs to MAG welding.

MIG: Metal Inert Gas Welding.

Shielded gas welding, shielding gas argon (AR), helium (HE) or its mixed gas, does not react metallurgically with liquid metal, only plays the role of isolating air, so the arc combustion is stable, the transition of molten droplets is smooth and stable, no fierce spatter, most suitable for the welding of non-ferrous metals such as aluminum, copper, titanium, etc., and can also be used for the welding of steel, such as stainless steel, heat-resistant steel, etc.;

Mag: metal active gas welding, the shielding gas is a mixture of inert gas and a small amount of oxidizing gas (O2, CO2 or its mixture, etc.), which is to further improve the arc stability, improve the welding seam forming and reduce the arc radiation intensity under the condition of not changing or basically not changing the arc characteristics of the inert gas, and is often used in the welding of ferrous metal materials.

MIG welding can be applied to most major metals, including carbon steels and alloy steels.

Inert gas welding (MAG) is suitable for stainless steel, aluminum, magnesium, copper, titanium, zirconium and nickel alloys. Arc spot welding can also be carried out using this welding method.

The shielding gas for CO2 gas arc welding is carbon dioxide (sometimes CO2+AR gas mixture).It is mainly used for manual welding. Due to the special influence of the thermophysical properties of carbon dioxide gas, when using a conventional welding power supply, it is impossible to form a balanced axial free transition of the molten metal at the end of the welding wire, and it is usually necessary to use a short circuit and a molten droplet necking burst, so there is more spatter than the free transition of MIG welding.

However, if a high-quality welding machine is used, the parameters are selected appropriately, and a very stable welding process can be obtained, so that the spatter can be reduced to a minimum. Due to the low cost of shielding gas** used, the weld seam is well formed with short transitions, and the use of welding wire containing oxygen absorber results in a quality weld joint without internal defects. Therefore, this welding method has become one of the most important welding methods for ferrous materials.

Advantage 1: Reasonable design and free adjustment. Different discharge frequencies can be selected according to different metal materials to achieve the best repair effect.

2. The heat-affected area is small. There is no heat input during the instantaneous process of stacking, so there is no deformation, undercut and residual stress. No local annealing occurs and no re-heat treatment is required after repair.

3. Extremely small welding impact, this welding machine overcomes the impact of ordinary argon arc welding on the periphery of the workpiece in the welding repair process. It is also possible to repair the machining surface of the workpiece where there is no margin.

4. High repair accuracy: the thickness of surfacing welding is from a few microns to a few millimeters, only grinding and polishing.

5. High welding strength: due to the full penetration into the surface material of the workpiece, it produces a strong adhesion force.

6. Easy to carry: light weight (28 kg), 220V power supply, no working environment requirements.

7. Economy: Repair immediately on site, improve production efficiency and save costs.

8. One machine is multi-purpose: it can be used for surfacing welding, surface strengthening and other functions. By adjusting the discharge power and discharge frequency, the required thickness of the weld overlay and the reinforced finish can be obtained.

9. Hardness of surfacing layer and diversity of supplementary materials.

MAG (Metal Active Gas Arc Welding) welding is the English abbreviation of MIG/MAG arc welding. It is a mixed gas shielded welding that is mixed with a small amount of oxidizing gas (oxygen, carbon dioxide or their mixed gases) in argon. The commonly used gas mixture in China is 80% AR + 20% carbon dioxide, which is often called argon-rich mixed gas shielded welding due to the large proportion of argon in the mixed gas.

Features: The use of active gas mixture as the shielding gas has the following functions:

1) Improve the stability of the droplet transition.

2) Stabilize the cathode spot and improve the stability of arc combustion.

3) Improve the penetration shape and appearance of the weld.

4) Increase the thermal power of the arc.

5) Control the metallurgical quality of the weld and reduce the welding defects.

6) Reduce welding costs.

MAG welding can be welded with short circuit transition, jet transition and pulse jet transition, which can obtain stable welding process performance and good welding joints, which can be used for welding in various positions, especially suitable for the welding of ferrous materials such as carbon steel, alloy steel and stainless steel.

Second, shielding welding (carbon dioxide gas arc welding) is a welding method that uses carbon dioxide as a shielding gas, solid or flux-cored wire as a melting electrode and fills to form a weld.

MAG: A mixture of inert gas (e.g. argon, etc.) + reactive gas (e.g. carbon dioxide gas, oxygen or both) for arc welding. Usually used in important structural stainless steel and carbon steel require low spatter in special occasions, due to the high cost of argon, MAG welding cost and welding quality are higher than secondary welding.

Carbon dioxide belongs to manual welding, submerged arc welding is mechanical welding.

MIG is MIG, MAG is MIG, TIG is MIG, and TIG is Non-MIG.

The electrodes of MIG and MAG are melted, so welding wire is used, and TIG is what we generally call argon arc welding.