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Brazing various metals with Aliexpress

At Aliexpress there is a beautiful flux-cored wire called a welding wire. With it, you can solder not only aluminum, but almost all metals!
This three-meter wire with a melting point of 360 degrees Celsius will cost about 11 dollars 54 cents.
Soldering metal aluminum wire with Aliexpress

If you search, you can find the same wire much cheaper than the previous one: for 10 meters they ask for only 10 dollars. True, the melting point is higher here, which reaches 490 degrees Celsius. Therefore, if the first wire is suitable for thin aluminum, this thick metal will be conveniently welded.
Soldering metal aluminum wire with Aliexpress

This wire is in high demand among residents of the former USSR, apparently because many Kulibins live in them.

What is needed for soldering aluminum and other metals?


At home, you need only three things:
  1. .
  2. .

Soldering process step by step:


Weld fitting with the transition to the hose.
Soldering metal aluminum wire with Aliexpress

We fix the products in a vice, we take a wire and a gas cylinder with a torch.
Soldering metal aluminum wire with Aliexpress

Important! It is necessary to heat the parts to be connected, but not the wire. Therefore, light the burner and warm the parts well.
Soldering metal aluminum wire with Aliexpress

Once everything is well warmed up - touch the wire to the junction. If it spreads, then we proceed to soldering, distributing the solder evenly at the junction. If the temperature is not enough, we continue to warm.
Soldering metal aluminum wire with Aliexpress

Soldering metal aluminum wire with Aliexpress

Applying a wire along the entire length of the joints, we achieve the filling of all seams and recesses.
Soldering metal aluminum wire with Aliexpress

After the formation of a continuous seam, we allow the product to cool by itself, it is not necessary to specifically cool it!
Soldering metal aluminum wire with Aliexpress

After cooling, a sealed connection was obtained, which certainly would not fall apart. Almost like real welding.
Soldering metal aluminum wire with Aliexpress

It is possible to solder with each other products not only from one metal, for example, from aluminum, but also from different metals: copper, steel, etc. So you can combine aluminum with brass, brass with brass and even brass with steel.
Wire soldering with Aliexpress

In principle, you can solder any metals in any combination!
Ferrous metals are soldered no worse.
Brazing various metals with Aliexpress

Brazing various metals with Aliexpress

The amazing strength of the joints allows you to solder even those parts in which there will then be liquid or air under high pressure!

Features of work and safety measures


The soldering process takes place at high temperatures, and therefore care must be taken when working.
Nuances of soldering aluminum:
  • Caution in work, so as not to burn yourself, as the temperature is significant, in contrast to conventional tin soldering.
  • Aluminum in its expanded state is a very flowing metal, so you need to apply the wire in very small batches.
  • Soldering parts must be stationary.
  • The soldered product must not be touched until completely cooled in natural conditions.

Such should be for every person who likes to make and repair something!

Watch the video


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Comments (7)
  1. Guest Valery
    #1 Guest Valery Guests February 17, 2019 19:39
    3
    Can you sing a stainless steel?
  2. Sergey K
    #2 Sergey K Visitors February 17, 2019 9:51 p.m.
    0
    But what about the strength of the connection? It turns out as with the usual tin-lead solder or better?
    1. Well
      #3 Well Guests February 17, 2019 10:37 p.m.
      3
      If the same strength as with tin solder, then why order such a wire? Your question is not logical.
      Tin or lead, the metals themselves are soft, hence the useless strength. There is a certain alloy of aluminum, which is tens of times superior. This is an intermediate link between soldering and welding.
      Very durable! Do not doubt! Personally, I soldered the frame of the bicycle two years ago in a similar way - it still successfully rides.
      Sealed off the broken eye of the engine mount - duralumin housing and everything works just as well!
      1. Sergey K
        #4 Sergey K Visitors February 18, 2019 01:18
        0
        You may not be aware, but there is a special solder for aluminum. Soldered by a blowtorch. High-voltage cables are soldered with this solder. But it is based on tin. And durable in its niche.
        There is still a bunch of different solders, for example, you can solder with brass, but such a torch will not be enough, in any case, it took me more than half a bottle of gas to solder the solder to the cutter! There are better solders based on silver, but one stick the size of an electrode costs more than 4 bucks and I have not tried it yet ...
        So the question arose of why this solder is closer in strength? But the answer was neither found here nor in the reviews on the goods on Ali. What I soldered, I calmly solder with ordinary tin solders (just do not need to take those for radio parts!) POS-30 with soldering acid for example. And everything has been holding for 40 years already and I think that it will last as much.
        And the Chinese solder for brazing copper pipes, such as was bought on occasion, does not get soldered with a soldering iron at all, it doesn’t burn like that, and half a year later, it is used as a load for plants in an aquarium and simply dissolves in water!
  3. Yura
    #5 Yura Guests February 18, 2019 05:23
    2
    solders all metals 100 times stronger than tin
  4. Guest Vladimir
    #6 Guest Vladimir Guests February 20, 2019 11:28
    0
    Are the hands of the sharpened vise handle still not hurt?
  5. Igor
    #7 Igor Guests August 13, 2019 07:36
    0
    Copper for heating has long been so soldered. True, there fittings are made for this. They do not solder end-to-end, but overlap. Inserting somewhere 8mm into another product. It is also heated with a gas burner and then soldered with zinc wire. True, before heating it is treated with special grease, so that zinc spreads well at the attachment point. He calmly holds 6 atmospheres, and more and is not up to. True, large sizes are already being cooked by welding, there alone gas will not help.

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