How to solder a magnet without losing its strength

Many people try to solder wire with magnets. But magnets lose its magnetic strength when heated up above 80° C to 100°C. Many suggested to solder quickly and use metal as heat sink.
But here I am showing a way where you can solder wires on magnet without losing its magnetic strength.
But first you need to understand an Atom is a very tiny magnet. In a big magnet they align their magnetic fields in one particular direction. Heat disturb this alignment. Therefore the magnet loose its magnetic strength. When heated above 80° C, a magnet will quickly lose its magnetic properties.
Heat a small magnet in present of a large magnet, which will attracts the tiny magnetic fields, therefore they do not get misaligned. You can always take advantage of using iron metal sheet as heat sink with the above process.
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[@karidhacker3196]

Thanks for the tip. I once asked a youtuber how he managed to solder magnets he used in a video. He did not bother replying. Your posting this video is a blessing to me. Thank you, Saurav.

[@RIPPC-xr5ju]

how you feel at 1:45 ??? lol
great vid btw

[@wekids]

great invention. I have been looking for this kind of solution to solder magnet on PCB. Most of the articles and videos talks about the effect of heat on magnets but no one came out with a solution. Thanks a lot for providing so easy solution.

[@jaykemm3472]

I now have everything I need to complete my time machine. Thank you and Goodbye

[@BrainergiserTube]

Hey, wait wait, which year are you going. Past or future. 😊

[@Mrbobinge]

Brilliant idea. Astounding! Congratulations. It excites this old brain how to improve the idea even further. Provide a steel magnetic-circuit path from base of big magnet to top of small magnet. Drill a hole in this steel circuit to fit over the top of small magnet, just below soldering surface. Job done.

[@100vg]

Excellent! Thank you, Saurav!!!

[@JohnHill-qo3hb]

Thank you for taking the time to us this.

[@normanbeaulieu4204]

Thank you this is exactly what I have been trying to do.

[@BrainergiserTube]

good to hear.

[@alikhajehvandi5617]

Good job, and good luck in your way.

[@PirateWasHere]

This guy is HERO, best idea I saw in this 2024 " magnetic " year . Thank you for sharing this very clever & useful tip . 🍻🍕

[@wesr.e.3909]

You are heating the magnet way too long!
A neo magnet is nickel plated; use fine sandpaper to roughen the surface, first. Then use a small amount of flux to whet the magnet's surface. Soldering will be faster.
Also, in my experience, neo magnets thinner than 6mm are more sensitive to heat and tend to lose their magnetism faster. Place the magnet on a large copper sheet, for better heatsink action.

[@BrainergiserTube]

Yes, the heat was more to show the concept is working. Heat sink helps. But the goal was to show how external higher magnetic force reduce the heat effect.

[@smitauke]

​@@BrainergiserTube a higher magnetic force is not the reason why this works. you are cooling the small magnet with the big magnet. We tested it today by putting a thin cardboard between the 2 magnets. the magnetic force was still very high, but when soldered (even quickly) the small magnet looses a lot of its magnetic force.
We also tested by placing the small magnet on a (non magnetic) aluminium cool rib. And even after heating a long time, the small magnet still keeps it magnetism.
So thanks for getting us in the right way, but the theory is not correct.
Correct theory is: Heat reduces magnetism in magnets. by avoiding the magnet to get hot, the magnet can holds it magnetism. This can be done by placing the magnet on a large metal part (like a big magnet, or pliers) or by using a cool rib (altough they are mostly aluminium, so it is harder to hold the magnet in place and avoid sticking to the soldering iron)

[@smitauke]

Thanks, you are correct. With a good heatsink the magnet holds its magnetism.

[@BrainergiserTube]

@@smitauke thanks for sharing your experiment results. Both heat sink and external magnetic force helps to keep the magnet in better health.

[@techmad8204]

Love ❤️ your videos
Can u help me to write c language to program atmega 8 on a bread board without usbasp?

[@techmad8204]

Saurav Chakraborty we had a workshop and the teacher (frm iit delhi)said
"if u program microcontroller in c it will be easy to prgram anything in the future "
So i serched on the net but there where no reliable or beginner guide,and u popped up in my subscription box and knew u would reply no problem if dont make a video happy that u just asked thats why I like ur channel so much

[@GrandadIsAnOldMan]

Great video, very helpful :-)

[@GrandadIsAnOldMan]

You flatter me, your work is far more professional and informative. Using a bigger magnet simply hadn't occurred to me and yet it makes so much sense :-)

[@Elnufo]

So simple that the mind just does not find it, going the way around instead :-D

[@nopriors]

If this is used to connect 12 volt LED lights will the magnets lose their strength over time as the current passes through.

[@wesr.e.3909]

Gregory,
The voltage will be conducted 'around' the magnet by the nickel plating. and will not affect the magnetism UNLESS the current flow exceeds the current-carrying capability of the nickel/wire connection and the magnet heats to above the Curie temperature.

[@Proutprutproutprout]

Thank you!! I work in a fablab and this will be great to help students spice up their projects!

[@BrainergiserTube]

Nice to know. Which fablab?

[@OAbbas]

Thanks for the tip

[@arnab_blue]

Wow great idea...

[@shawn576]

Cool. Thanks!

[@ChristopherLMunoz]

Thanks and a like!

[@BrainergiserTube]

Thank you.

[@jordanwelty6582]

👏

[@rona_sona]

Tank you mister Brainergiser

[@saiiiiiii1]

Great tip 👍

[@vrokhlenko]