Advantages and precautions of induction heating equipment when welding aluminum
Release time:
2022-07-29
【Summary Description】 The advantages and precautions of induction heating equipment in aluminum welding, the advantages of induction heating equipment for brazing are many, the biggest advantage of induction brazing is to use the principle of electromagnetic induction heating to weld a variety of metals together. In addition, the brazing reaction only acts on the base metal in the range of several microns or tens of microns, and has almost every influence on the deep structure of the base metal. When using electromagnetic induction heating equipment for aluminum welding, the following points need to be paid attention. 1. The melting point of aluminum Since aluminum and aluminum alloy are relatively low, special attention should be paid to the selection of aluminum brazing filler metal, because this will lead to a small difference between the melting points of the base metal and the brazing filler metal. Therefore, special attention should be paid to the temperature control during the welding process. 2. Selection of solder When using solder for brazing, special attention should be paid to the temperature difference between the base metal and the solder. Therefore, when selecting aluminum or aluminum alloy for soldering, the solder should be carefully selected according to the characteristics of tin. 3. Oxidation treatment Because there is a layer of oxide film on the surface of aluminum, we need to destroy the oxide film during aluminum welding, otherwise brazing cannot be carried out, but this will lead to oxidation of the surface of the weldment, so when brazing, it is recommended that you choose electromagnetic induction heating equipment with nitrogen protection.
There are many advantages of induction heating equipment for brazing. The biggest advantage of induction brazing is that a variety of metals can be welded together by using the principle of electromagnetic induction heating. In addition, the brazing reaction only acts on the base metal in the range of several microns or tens of microns, and has almost every influence on the deep structure of the base metal.
When using electromagnetic induction heating equipment for aluminum welding, the following points need to be paid attention.
1. The melting point of aluminum
Since aluminum and aluminum alloy are relatively low, special attention should be paid to the selection of aluminum brazing filler metal, because this will lead to a small difference between the melting points of the base metal and the brazing filler metal. Therefore, special attention should be paid to the temperature control during the welding process.
2. Selection of solder
When using solder for brazing, special attention should be paid to the temperature difference between the base metal and the solder. Therefore, when selecting aluminum or aluminum alloy for soldering, the solder should be carefully selected according to the characteristics of tin.
3. Oxidation treatment
Because there is a layer of oxide film on the surface of aluminum, we need to destroy the oxide film during aluminum welding, otherwise brazing cannot be carried out, but this will lead to oxidation of the surface of the weldment, so when brazing, it is recommended that you choose electromagnetic induction heating equipment with nitrogen protection.
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