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A simple way to solder aluminum

This is an incredibly simple way to solder aluminum you can imagine. With the help of it, anyone, at home or in the garage, can easily repair and restore any aluminum products, without any argon welding. You will easily make various designs from an aluminum profile and much more.
Now, to solder a radiator or a bicycle frame made of aluminum, it is not necessary to go to the workshop and give a lot of money, everything can be soldered at home.
With a competent approach, soldering is no worse than a welded joint, but certainly more reliable than any cold welding, which is usually used as an alternative.

Will need


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A gas burner does not have to be professional. A normal gas nozzle burner nozzle is sufficient, or any other is suitable.
In more detail, I will talk about a specialized solder that will need to be purchased. This is a tubular powder solder specially designed for brazing aluminum (why powder? - powder inside the tube). It consists of two components: a shell and a powder base inside. We will not go into details about the chemical composition, this is useless.
It can be purchased in specialized stores, it is used in car repair shops. The most affordable way for everyone is to buy it on .
It is inexpensive, I advise you to take the packaging immediately - it’s definitely useful in life.
A simple way to solder aluminum

Soldering aluminum gas burner


We take a profile or details that need to be welded.
A simple way to solder aluminum

We clean the surface with a brush for metal. As an option, you can take sandpaper with coarse grain. The larger the surface roughness for soldering, the better the bond with solder.
A simple way to solder aluminum

With a clamp or other device, fix the connection. Turn on the gas burner and heat the joint.
A simple way to solder aluminum

We bring the tubular solder. It melts and spreads along the seam.
A simple way to solder aluminum

The whole process takes place at about 450 degrees Celsius.
The solder has incredible fluidity and flows into any, even the smallest, cracks in the metal.
A simple way to solder aluminum

A simple way to solder aluminum

After distributing the solder, we warm the connection a little more so that it is distributed and spread out at the joints of the assembly as much as possible.
A simple way to solder aluminum

To summarize


Personally, when I found out about such a simple and affordable method of soldering, I was incredibly surprised. I think I managed to surprise you too, unless of course we knew about him before.
A few words about reliability. Of course, welding wins, since there is a union and mixing of structures, but this method is not much inferior. If the connection is bent, the part itself bends. The solder joint is extremely reliable and quite capable of withstanding almost any load, as if the joint was cast.
The only thing, if it turned out not quite high-quality soldering, is most likely not enough heating by the burner. In other cases, everything keeps tight.
Now to solder a hole in an aluminum pan, to make a bucket of sheet metal, to make a shelf from a profile for you is not difficult.
Take a method for arming and use your friends! See you soon!

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Comments (31)
  1. W
    #1 W Guests May 16, 2018 17:31
    19
    Something seam is some kind of over decorative. Fall apart nafig under load.
  2. Guest Sergey
    #2 Guest Sergey Guests May 16, 2018 19:59
    26
    This is really useful info! Thanks to the author!
  3. Alex alex
    #3 Alex alex Guests May 17, 2018 20:21
    9
    Soldering iron of appropriate power (gas burner), ordinary solder, aspirin tablet as a flux.
    Profit!
  4. Guest Sergey
    #4 Guest Sergey Guests May 21, 2018 15:32
    6
    melting point of alumina 1200 g
    1. kamiram
      #5 kamiram Guests June 14, 2018 10:07 p.m.
      0
      The pure propane combustion flame has a temperature of about 2526 ° C, and the heat output, on average, is 2110 ° C
    2. valentain
      #6 valentain Guests August 19, 2018 18:43
      1
      No one is going to melt aluminum oxides. The flux deals with this. Our business is heating the place of welding or soldering to the appropriate process temperatures.
  5. Peter
    #7 Peter Guests May 21, 2018 15:35
    4
    silumin so do not solder
    1. Evgeniy
      #8 Evgeniy Guests March 2, 2019 2:42 p.m.
      2
      And who is soldering silumin? No wonder they joke that this is a rare alloy of cardboard and foil
  6. Oleg-sg
    #9 Oleg-sg Guests May 22, 2018 12:13
    3
    Skinning why? To grip solder? - Mystic
    1. Guest Vladimir
      #10 Guest Vladimir Guests May 23, 2018 19:46
      3
      to remove large oxide, otherwise warm longer
    2. Guest Michael
      #11 Guest Michael Guests June 10, 2018 11:42
      3
      To remove the oxide film
      1. Guest Igor
        #12 Guest Igor Guests July 28, 2018 15:34
        4
        The film will instantly reappear. It is for this reason that aluminum is welded ONLY in argon. Argon prevents the formation of an oxide film. Therefore, to strip aluminum, this is complete nonsense. Chemistry needed to be taught at school.
        1. valentain
          #13 valentain Guests August 19, 2018 18:50
          0
          Junction surface cleaning is performed to CLEAN the junction surface from contaminants invisible to your naked eye. Believe there is full of all sorts of nasty things that interfere with soldering. And the flux can not cope with all the dirt because we are soldering aluminum, which easily joins metal compounds.
          1. Guest Igor
            #14 Guest Igor Guests September 10, 2018 18:46
            2
            You will NEVER be able to remove the oxide film. It is formed INSTANTLY. This is masturbation.
            In order that the oxide film does not form, aluminum is welded in an ARGON medium. No other way.
  7. Not a welder
    #15 Not a welder Guests May 22, 2018 18:00
    6
    Soldering is not welding!
  8. Guest Vladimir
    #16 Guest Vladimir Guests May 23, 2018 19:43
    4
    I myself have soldered so many times, it keeps excellent. The solder is called castolin. If I'm not mistaken, there are our analogs. I soldered a radiator, a silumin auto mirror and corners, everything holds
  9. the guest
    #17 the guest Guests May 24, 2018 08:25
    8
    This has been known for a long time. So the aluminum sheaths of communication cables from the time of the king of peas were soldered. The solder was called DSP "zinc-tin solder."
    1. Alesander
      #18 Alesander Guests May 29, 2018 13:19
      5
      Honestly, I did not know this method. Thanks to the author!
    2. Guest Michael
      #19 Guest Michael Guests June 10, 2018 11:44
      2
      No, this is not so ..
    3. Vyacheslav
      #20 Vyacheslav Guests June 25, 2018 10:24 PM
      0
      The technology for working with a TsOP or A250 solder (these are analogues) is as follows: the surface before soldering is made rough to increase the area of ​​contact or contact of the future soldering place and to increase the shear resistance, the surface is heated until the TsOP is melted and rubbed with a small layer of solder, then the place warms up it is wiped with a cloth and a thin layer of midday remains, and then it is soldered with ordinary solder. preferably POS 30 or 40 (they are more ductile), or PIC 60 (it is stronger). The main place of soldering is to protect from moisture - it turns out galvanic steam and aluminum turns into a sieve in just a week.
  10. Nick
    #21 Nick Guests May 29, 2018 2:49 p.m.
    17
    660 gr. melting point of aluminum. The author indicates a soldering temperature of 450 g. Q: HOW? Yes, simple! "powder aluminum electrode" is a multicomponent tin-lead-antimony solder with a flux for brazing aluminum. hence the author’s unwillingness to reveal the secret of the chemical composition of the “aluminum powder electrode”. no, solders with a bang, but only antennas.you don’t solder anything serious with this bullshit. only by welding!
    1. Dym
      #22 Dym Guests June 9, 2018 1:36 p.m.
      2
      Absolutely right! You said what I wanted to say))
    2. Guest Michael
      #23 Guest Michael Guests June 10, 2018 11:49
      0
      And who knows how to determine if aluminum is heated, it does not heat up to red, but simply starts to drip, flow ..
      1. kamiram
        #24 kamiram Guests June 14, 2018 10:09 p.m.
        3
        There is a very simple way: to rub the surface with soap. when the soap turns black, then aluminum is on the threshold of smelting
  11. Michael.
    #25 Michael. Guests June 10, 2018 11:40
    1
    It is interesting to know the composition of this soldering. ..
  12. Guest Michael
    #26 Guest Michael Guests June 12, 2018 10:34 p.m.
    1
    It would be nice for you to work on the grammar of the Russian language ... Commas are omitted where necessary ... And the letter "e" is also on the keyboard, but you do not have it in the text!
  13. Galina Petrovna
    #27 Galina Petrovna Guests June 13, 2018 10:17
    0
    Please tell me, is it possible to solder aluminum wire for crafts in this way?
  14. Mikhalych
    #28 Mikhalych Guests August 23, 2018 22:54
    1
    it’s a matter of bygone days, we once made electrodes with aluminum for welding aluminum, which were coated with brown drill bit, this is a white powder, it probably does not form oxide during combustion
  15. Guest Anatoly
    #29 Guest Anatoly Guests October 1, 2018 10:55
    0
    Thank!!!!
  16. Guest Alexander
    #30 Guest Alexander Guests April 11, 2019 6:37 a.m.
    0
    Soldering iron, solder, engine oil, nail and file. Hint nail file.
  17. Borga
    #31 Borga Visitors July 20, 2019 1:06 p.m.
    0
    advertising of course, but it’s worth a try, because in money it’s a miser, but for experience it’s a wagon.

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