How to solder aluminum

Aluminum is a very attractive metal for constructing your own self-made structures: light, well processed, drilled, sawn, does not rust, etc. But here's the ill luck: it is almost impossible to weld two pieces of aluminum without special argon welding. And the equipment for such welding costs more than one thousand rubles. But it turns out there is a way! This is soldering! But not simple, but using special powder-rod solders.

We need

So, what do we need to solder two parts one to another:
  • .
  • .
  • Brush for metal.
  • Clamp.
  • Vice.
You can ask for aluminum solder for soldering aluminum at technical stores for welding. But because of the narrow direction, its application is rather difficult to find, and the price is quite expensive. The most affordable way to buy it is on. If it is cheap there, take a pack at once - it will come in handy over time. How to solder aluminum
So it looks without packaging.The usual piece of wire looks, but not quite: there is a special powder inside this rod.
How to solder aluminum
The melting point is specified in Fahrenheit, if you translate us into convenient units, it will be 370-400 degrees Celsius.
How to solder aluminum

We solder aluminum with our own hands

We proceed directly to the soldering. First you need to prepare the surface of the metals. We take a rough metal brush and clean the place for future soldering.
How to solder aluminum
More precisely, you need not only to clean the surface from various dirt and oxides, but also to create a large roughness for better adhesion of the solder to the surface.
How to solder aluminum
This method is necessary to clean both parts in the place of the future connection. Now fix the clamp part and clamp everything in a vice for stability and reliability.
How to solder aluminum
Take a gas burner. And the thicker the metalthe more powerful should be the burner capable of heating the parts up to the soldering temperature.
How to solder aluminum
Heat the connection.
How to solder aluminum
After some time, the soldering rod touches the heated parts for a second.
How to solder aluminum
If there is no melting, continue heating.
How to solder aluminum
Try again. And as you can see, the solder began to melt.
How to solder aluminum
Without removing the burners, the solder is smeared over the joint seam. It spreads well.
How to solder aluminum
After the solder is evenly distributed, wait a couple of seconds for the solder to flow into all available places.
How to solder aluminum
Then turn off the burner and wait for complete cooling.
How to solder aluminum

Bonding strength

Of course, this is not arc welding, but it does very well,neither is not worse.How to solder aluminum I managed to break the connection only by taking it at a kink! But here, it seems to me, and welding would fall off. So friends, the soldering method is reliable.

Conclusion

How to solder aluminum
In conclusion, I would like to say that this method can not only solder aluminum parts, but also repair aluminum products, duralumin, silumin. By the way, in auto repair shops aluminum radiators are so often sealed, and according to tax they are charged as for welding using argon.

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