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Argon arc welding is the use of argon as a form of gas shielded welding, there are melted pole argon shielded welding (MIG) and non-melted pole argon shielded welding (TIG), welding aluminum plate can only use AC argon arc welding machine, shielding gas with 4 9 argon; The DC argon arc welding machine can also be used, but the welding machine can only be reversed (the welding gun is connected to the negative electrode), but the bearing capacity of the tungsten electrode is relatively large, and it can be welded firmly, but the weld formation is relatively poor.
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The argon arc welding machine can be adjusted to the AC machine, for example, the 3-4mm thick aluminum plate can not use a large welding current, it is recommended that you use 80-120A, the oxidation of the aluminum plate is relatively easy, so it is recommended that your argon pressure be slightly increased, 10-13 can be used, and aluminum welding wire is used.
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1. AC argon arc welding machine should be selected, which has the function of cathodic crushing.
2. Choose the appropriate current.
3. Pay attention to the temperature of the molten pool, the base metal will roll around before it is melted.
4. The welding wire should be directly added to the molten pool.
5. The end of the welding wire should always be protected by argon.
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KB Digital Pulse Gas Shielded Welding Machine.
Product Description Wide range of output pulse current. The power supply can output 50A-500A (rated load) stably, and the average pulse current is 40A-400A.
It is suitable for all-position welding, especially for low-line energy welding of thin plates.
It is easy to adjust, and has the function of presetting wire feeding speed, welding current and welding voltage.
It is suitable for welding of welding rods with different diameters. Ordinary mild steel ( aluminum ( aluminum magnesium ( stainless steel ( manual welding rod ( .
In the area of the pulse welding range, a stable pulse and drop without spatter is realized, and the weld is well formed.
The flexible hand feel key film panel is adopted, which is beautiful and generous, with clear functional area division and simple operation.
Single-chip microcomputer control, with unified adjustment function, voltage fine-tuning.
It has the functions of automatic latching and storage and recall of welding parameters when power is off.
It has protection functions such as over-current, over-temperature, under-voltage, and over-voltage.
Scope of application. Applicable material type and thickness:
Ordinary mild steel, stainless steel, plate thickness
Aluminum and aluminum-magnesium alloy plate thickness
Applicable Welding Positions:
Flat, vertical, horizontal, vertical and all-position welding.
Applicable Welding Wire Electrode Type:
Solid steel welding wire.
Stainless steel welding wire.
Aluminium and aluminum-magnesium alloy welding wire.
Low-hydrogen alkaline electrodes and other types of electrodes.
When welding aluminum welding wire, Teflon inner wire tube ( and special contact tip for welding aluminum must be selected.
Wiring diagram technical parameters.
Model DP350 DP500
Input power: three-phase 380v 10% 50hz
Rated input capacity 25kVA
No-load voltage 70V 70V
Welding voltage 14-40v 14-45v
Output current: 40-350A, 50-500A
Rated load duration 60% 60%.
Applicable wire diameter (mm).
Weight 50kg 58k
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Thin point aluminum plate is AC welded with TIG. Thick ones can be soldered with MIG.
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Argon arc welding is also electric arc welding with argon protection.
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It is necessary to use AC and DC square wave argon arc welding machine because aluminum is easy to oxidize, which is common sense.
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Summary. It is recommended for welding aluminum plates, aluminum-silicon alloy castings, forged aluminum, duralumin and other general aluminum alloys. However, it is not suitable to weld aluminum-magnesium alloy.
Ordinary argon arc welding machine can not weld aluminum alloy, but ordinary welding machine can use wewelding555 aluminum electrode to weld aluminum alloy, but this welding machine can be welded if it is a three-phase reactive welding machine, it is also an ordinary electric welding machine, and a good electric welding machine will generally add reactance in order to maintain the stability of the arc.
I am an ordinary electronic AC welding 3-phase, can I weld aluminum-magnesium alloys.
It is recommended for welding aluminum plates, aluminum-silicon alloy castings, forged aluminum, duralumin and other general aluminum alloys. However, it is not suitable to weld aluminum-magnesium alloy.
What are the implications.
How to distinguish a welding machine with reactance.
There is a function of reactance to stabilize the voltage, and everyone is asking.
There is a function of reactance to stabilize the voltage, and everyone is asking.
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The welding method of aluminum with household electric welding machine is as follows: 1Clean the surface of the aluminum with a Potato Stainless Wire Brush to remove the oxide layer and dirt, and ensure that the welding area is clean so as not to affect the welding quality. 2.
Adjust the equipment: Adjust the welding machine to the appropriate current and voltage for the aluminum, and then install the tungsten electrode and the appropriate argon flow and pressure. 3.
Start welding: ignite the argon arc of the tungsten electrode, keep a certain welding distance, flow argon gas through the welding area to form an argon protective atmosphere, and then start welding. During the welding process, it is necessary to maintain the appropriate current and voltage to avoid overheating or over-ablation of the aluminum sapp, while maintaining a certain welding speed.
4.Welding end: After completing the weld, you need to wait for the weld to cool, and then clean and polish the weld to achieve a smooth and beautiful effect.
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Answering the kiss, aluminum and aluminum alloy materials, through heating or pressure to melt to achieve the effect of combination, in the fusion process can be used welding wire or metal filling, can also use two workpieces self-melting, so that the molecules at the fusion of the two workpieces penetrate each other to form a permanent connection of the process equipment. 2. The use of low voltage and high current electric energy, the electric energy through the arc instantly converted into heat energy, the use of high-purity argon gas as the shielding gas during welding, to avoid the generation of pores, impurities during welding, at the same time, AC argon arc welding and MIG gas shielded welding have a certain cathodic cleaning function, can directly remove aluminum and aluminum alloy oxide film. Because the aluminum welding machine is small in size, simple in operation, easy to use, high in welding efficiency, good in weld forming, large in penetration, it can weld through aluminum and aluminum alloy plates to achieve high-quality bonding effect, and the welding strength is the same as that of the base metal, and the sealing is good, so it is widely used in various fields of industry and life.
Aluminum welding machine will produce arc light in the process of use, arc light contains infrared, ultraviolet rays, but also produces metal vapor and smoke and other harmful substances, tungsten rod in tungsten argon arc welding contains a small amount of radioactive elements, so must do enough protective measures, in addition, because of the use of argon as a protective gas, should not be operated in the windy welding field.
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