Rust Removal with Washing Soda and electrolysis..

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Rust Removal with Washing Soda and electrolysis..

Postby QuantumRift » Mon May 20, 2013 6:12 pm

This is cool. I have done it from time to time to remove rust form old tools I've found. or shovels, etc.

http://www.youtube.com/watch?v=y4yYF8gSHdA
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Re: Rust Removal with Washing Soda and electrolysis..

Postby zudorf » Mon May 20, 2013 7:13 pm

Looking for a swimming pool next to a transfer station and a 5 gallon drum of "washing powder". Going to strip my rig down to bare metal! :lol:
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Re: Rust Removal with Washing Soda and electrolysis..

Postby QuantumRift » Mon May 20, 2013 8:09 pm

Yea that's a good idea. You could do the entire frame, just get a shallow 'pan', but it would take something like a railroad tie for the sacrificial metal... :idea:
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Re: Rust Removal with Washing Soda and electrolysis..

Postby zudorf » Mon May 20, 2013 10:31 pm

QuantumRift wrote:Yea that's a good idea. You could do the entire frame, just get a shallow 'pan', but it would take something like a railroad tie for the sacrificial metal... :idea:


That's why I was looking for a swimming pool. I'd use a Jeep as the "anode". :lol:
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Re: Rust Removal with Washing Soda and electrolysis..

Postby QuantumRift » Thu May 23, 2013 10:15 pm

I meant a railroad RAIL, not a tie. DUH.
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Re: Rust Removal with Washing Soda and electrolysis..

Postby zudorf » Fri May 24, 2013 6:48 am

QuantumRift wrote:I meant a railroad RAIL, not a tie. DUH.


I knew what you meant. :lol:
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Re: Rust Removal with Washing Soda and electrolysis..

Postby ravi261 » Fri May 24, 2013 1:16 pm

zudorf wrote: I'd use a Jeep as the "anode". :lol:


It would certainly be more useful in this application than its original. :D
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Re: Rust Removal with Washing Soda and electrolysis..

Postby olifant » Tue May 28, 2013 11:19 pm

A coworker taught me this trick. Works but corrodes your charger clamps. He has a 55 gallon stainless barrel he bought for doing big parts. :shock:
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Re: Rust Removal with Washing Soda and electrolysis..

Postby ArdWrknTrk » Thu May 30, 2013 8:47 pm

Stainless is NO good!
The chromium released when the iron is plated onto the cathode (part) is toxic as all get out.

This method also only really works 'line of sight'.
For smaller parts I have a 5 gallon bucket that I coiled a piece of perforated steel into.
I hang the part(s) from a wooden spreader and just clip the power supply (an old commercial walk around battery charger) to the bit of perf steel that sticks up above the lip of the bucket.
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Re: Rust Removal with Washing Soda and electrolysis..

Postby olifant » Sat Jun 01, 2013 8:33 pm

The as drum is used only as a container. Scrap iron is used as the sacrificial piece. This allows him to do fairly large or multiple pieces.
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Re: Rust Removal with Washing Soda and electrolysis..

Postby ArdWrknTrk » Sat Jun 01, 2013 8:51 pm

So the drum is insulated from the anode?
I figured he was just putting the clamp on it.

Now, there's an idea. Just use an unlined steel drum...
A vessel and an anode in one.
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Re: Rust Removal with Washing Soda and electrolysis..

Postby Dingbat » Mon Jun 10, 2013 7:23 am

I prefer the carbon rod anode method, in general it seems less messy and the parts seem to require less cleaning.
I always use a rubber stock tank to do parts.

Here is an overview of using the carbon rods.
http://www.fordgarage.com/pages/electrolyticderusting.htm
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Re: Rust Removal with Washing Soda and electrolysis..

Postby 95BadBoy » Sat Jul 04, 2015 10:56 pm

The electrolysis seems to do a desent job on that fellows project.

I borrowed a friend 2 brand new 25 foot chains, although he didn't tell me he was going to drag it through alkalie and leave them to rust in a bucket for 2 weeks. They look like they are 50 years old when he returned them. Hope I can clean them up some what. Maybe this washing soda / electrolysis might work. :)
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Re: Rust Removal with Washing Soda and electrolysis..

Postby Dingbat » Sun Jul 05, 2015 10:22 am

Any pitting in the metal will remain after the electrolysis.
Also the electrolysis tends to be line of sight, so doing a chain might be a bit interesting.
If the chain is hardened, hydrogen embrittlement might be an issue so you would likely need a heat treatment to get back to hardened but non-brittle steel.
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Re: Rust Removal with Washing Soda and electrolysis..

Postby 95BadBoy » Sun Sep 20, 2015 10:12 pm

:lol: Well, I finally tried the 5% cider vinegar to de-rust these chains. Threw each chain in a 5 gal bucket with a gallon of the cider vinegar. Left them for 24 hours. Took 90% of all that rust that was on them. Power washed them, dried em - and then gave them a real good covering of WD40. Worked really well.

Lending things out will most likely not be happening again. :lol:
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Re: Rust Removal with Washing Soda and electrolysis..

Postby Von » Wed Oct 21, 2015 4:54 pm

Once I get the garage built and the trailer with all my stuff unloaded I'll be trying this. I have a ton of abused and neglected tools, covered in rust.

I saved an old ATX power supply from one of my ancient computer projects. I'll try jumpering the mobo leads so it'll come on without a board attached and use the 12 volt leg and some cheap clamps. I think the specs on the side listed 12 volt at 13 amps... something like that.
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Re: Rust Removal with Washing Soda and electrolysis..

Postby Dingbat » Wed Oct 21, 2015 6:06 pm

There are plenty of boards out there that convert ATX to bench or lab supplies:
https://www.sparkfun.com/products/12867
http://www.seeedstudio.com/depot/ATX-br ... -1222.html
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Re: Rust Removal with Washing Soda and electrolysis..

Postby Von » Wed Oct 21, 2015 8:58 pm

Dingbat wrote:There are plenty of boards out there that convert ATX to bench or lab supplies:
https://www.sparkfun.com/products/12867
http://www.seeedstudio.com/depot/ATX-br ... -1222.html


Well look at that... snazzy.
We used to just jump an extra ATX or use an old AT to power extra fans, cigarette lighters, peltier coolers, water pumps.... whatever the coolness of the week was.
All that labor we used to put into getting an extra 3 or 400 MHz... now they just give cycles away by the GHz. My phone has twice the power as my best overclocking venture... kinda depressing.
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Re: Rust Removal with Washing Soda and electrolysis..

Postby Dingbat » Wed Oct 21, 2015 10:47 pm

3 or 400 MHz, heck I remember doing funny things to get a few extra KHz, a true 5 MHz versus the stock 4.77MHz.
My older AT supplies always needed a decently high draw light bulb across the 5V lines to get any 12V power.

Yeh, all that horsepower in a phone and all it does is manage contacts, emails and the occasional Plague Inc session.
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Re: Rust Removal with Washing Soda and electrolysis..

Postby Von » Thu Oct 22, 2015 4:30 pm

Dingbat wrote:3 or 400 MHz, heck I remember doing funny things to get a few extra KHz, a true 5 MHz versus the stock 4.77MHz.
My older AT supplies always needed a decently high draw light bulb across the 5V lines to get any 12V power.

Yeh, all that horsepower in a phone and all it does is manage contacts, emails and the occasional Plague Inc session.


LOL, KHz... one of the guys that used to host LAN parties always talked about bauds and bytes. I think he's still running servers for Left For Dead and Half Life/Half Life 2.

I didn't start playing with them until the late 90's. When we were packing up to move to the new house I found a case that had an old Abit board with my trusty old Celeron 300A on it. That poor old thing... it outlived 3 or 4 boards, a half dozen PSU's and Lord knows how many sticks of RAM. Ended up tossing it but kept a couple of old Athlon dual cores.

I don't remember what we did with the ATs... don't remember doing anything but plugging them in, but that was so long ago. FIFO... that info is long gone.
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