Many craftsmen, sooner or later, faced the need to solder aluminum to copper or aluminum to aluminum.
But the oxide film that forms on the surface of aluminum can nullify all our efforts. Solder - do not solder, but tin does not want to "stick" to aluminum of its own accord.
You have to use some special tools, fluxes, special solders ....
And what if all this is not at hand? Then read on, and at the end we watch the VIDEO video !!!
To use this method, you just need to have the following tools and tools:
- Soldering iron with a power of at least 40 watts.
- Knife
- Tin
- Machine oil (any)
- Rosin (although I did without it!)
We clean the aluminum in the place where the soldering will be carried out. It is best to do this with a knife so that the aluminum surface becomes rough (with grooves, scratches)
Pour engine oil over the cleaned area. What brand of oil? Yes, anyone!
For example, I used the I-20.
With a well-heated soldering iron, pick up some tin and ... start warming up the place that you have prepared for soldering with a sting.
Move the tip forward/backward with slight pressure, as if you were rubbing tin into the surface of the aluminum.
After a few seconds, you will notice that the tin has begun to linger on the surface of the aluminum.
This is a good sign:)
So you are doing everything right.
If the oil has disappeared or you need to increase the area of the tin stain, pour more oil and continue to “rub” the tin.
When the surface of the aluminum is tinned (the tin does not roll into a drop, but confidently “hooks” on the surface), you can solder what you have in mind.
I've decided to solder the copper wire. Don't forget to tin it too. This will definitely not be a problem.
By the way, if you noticed - I did not use rosin, flux at all ...
Only tin and oil!
This is what the soldering area looks like. Completely reliable connection!
In the same way, you can solder aluminum to aluminum, having previously tinned both surfaces.
And here is the promised video:
I wish you all good luck with your crafts!!!