Rust Removal by Electrolysis

Traveller

Active Member
I have lots of rusty bits and usually resort to wire wheels, brushes, shot blasting or some other arduous method to remove the stuff. I don't believe in magic so do not fall for these smoke and mirrors mixed with snake oil solutions!
However, yesterday, I filled a bucket with water with a couple of cups of washing soda mixed in. I placed a piece of box section steel in the bucket and clamped the positive terminal of a twelve volt supply to it. I then connected a rusty bit I wanted to restore (off a tractor) submerged in the bucket, hung from the rim of the bucket by a piece of welding rod with the copper covering rubbed off. I then connected the negative terminal of the twelve volt supply to the welding rod.
I switched on the power supply and left it till tonight when I came home from work. The liquid fizzed away with bubbles (hydrogen and oxygen) coming from the metal parts.
The attached picture shows the results. The rusty cruddy one is in the same condition as the clean one was. All I had to do when I took it out was brush the crud off and that was it. Pretty pleased for a first go.


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Traveller

Active Member
Boris said:
That's mighty impressive

Its important to have good electrical contact with the rusty bit. I filed the rust off where the welding rod was wrapped round the part.
If you look at the eye bolt on the end of the clean component it is still rusty, I didnt attach the welding rod to it and therefore the current didnt flow through this part very well.
Ps all the rust ends up bonded to the bit of submerged scrap box section connected to the anode.

This is a link to the tou tube post I followed

http://www.youtube.com/watch?v=54ADeB6V ... ata_player
 

Sharribee

Moderator
Staff member
Forum Supporter
nigelphoto said:
The misses had some surplus body hair removed by Electrolysis, but unfortunately she's still rusty . . .



**Snigger**
That's rude :)

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Traveller

Active Member
Just an update about my electrolysis project. Thats rust removal, not hair removal!
The attached picture shows the same bits shown in the first picture after having them zinc plated and gold passivated. The cost was £20, very pleased with the result.


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