Welding method of aluminum alloy doors and windows
Release time:
2023-01-12
【Summary Description】 Aluminum alloy doors and windows welding method: 1, gas welding: such as carbon dioxide and other gases, gas welding can be used for welding quality requirements are not high aluminum sheet and casting repair welding, 2. Electrode arc welding: It can be used for repair welding of aluminum alloy castings and is a relatively common welding method. 3, inert gas welding: the use of inert gas to isolate the air, the protection of the welding point is the most used method of aluminum and aluminum alloy welding method. 4. Tungsten AC argon arc welding or tungsten pulse argon arc welding. Aluminum alloy doors and windows can be tungsten helium arc welding, argon helium mixed tungsten gas shielded welding, metal gas shielded welding, pulse metal gas shielded welding, etc. 5. Resistance spot welding and seam welding. This kind of welding requires large current and high productivity. It is suitable for mass-produced parts. aluminum alloy doors and windows welding pay attention to matters: 1. Cleaning before welding: Aluminum alloy doors and windows need to strictly remove the oxide film and oil on the surface of the welding joint and welding wire before welding, and chemical cleaning and equipment cleaning can be used! 2. Pad plate: Aluminum alloy has low strength at high temperature and will become liquid. Liquid aluminum has good fluidity and is prone to collapse during welding. A backing plate is needed to hold the molten pool and nearby metal to ensure penetration and no collapse. 3. Preheating before welding: Aluminum alloy doors and windows generally need to be preheated before welding when the thickness is ~. According to different types of aluminum alloy preheating temperature, it is generally: ℃ ~ ℃. 4. When welding: the cable of the welding torch should not be too long. In order to prevent the welding from not being able to pass through, the arc should be closed with a small current to fill the pit. 5 after welding: aluminum alloy doors and windows after welding need to clean up the remaining flux and welding slag left in the weld and nearby, otherwise these substances may damage the passivation film on the aluminum surface, and sometimes corrosion of aluminum alloy doors and windows. Summary: There are many welding methods for aluminum alloy doors and windows. The most common one is inert gas welding. Aluminum alloy doors and windows need to be strictly operated according to the precautions before, during and after welding to ensure the stability of aluminum alloy doors and windows.
aluminum alloy doors and windows welding method:
1, gas welding: such as carbon dioxide and other gases, gas welding can be used for welding quality requirements are not high aluminum sheet and casting repair welding,
2. Electrode arc welding: It can be used for repair welding of aluminum alloy castings and is a relatively common welding method.
3, inert gas welding: the use of inert gas to isolate the air, the protection of the welding point is the most used method of aluminum and aluminum alloy welding method.
4. Tungsten AC argon arc welding or tungsten pulse argon arc welding. Aluminum alloy doors and windows can be tungsten helium arc welding, argon helium mixed tungsten gas shielded welding, metal gas shielded welding, pulse metal gas shielded welding, etc.
5. Resistance spot welding and seam welding. This kind of welding requires large current and high productivity. It is suitable for mass-produced parts.
aluminum alloy doors and windows welding pay attention to matters:
1. Cleaning before welding: Aluminum alloy doors and windows need to strictly remove the oxide film and oil on the surface of the welding joint and welding wire before welding, and chemical cleaning and equipment cleaning can be used!
2. Pad plate: Aluminum alloy has low strength at high temperature and will become liquid. Liquid aluminum has good fluidity and is prone to collapse during welding. A backing plate is needed to hold the molten pool and nearby metal to ensure penetration and no collapse.
3. Preheating before welding: Aluminum alloy doors and windows generally need to be preheated before welding when the thickness is ~. According to different types of aluminum alloy preheating temperature, it is generally: ℃ ~ ℃.
4. When welding: the cable of the welding torch should not be too long. In order to prevent the welding from not being able to pass through, the arc should be closed with a small current to fill the pit.
5 after welding: aluminum alloy doors and windows after welding need to clean up the remaining flux and welding slag left in the weld and nearby, otherwise these substances may damage the passivation film on the aluminum surface, and sometimes corrosion of aluminum alloy doors and windows.
Summary: There are many welding methods for aluminum alloy doors and windows. The most common one is inert gas welding. Aluminum alloy doors and windows need to be strictly operated according to the precautions before, during and after welding to ensure the stability of aluminum alloy doors and windows.
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