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Author Topic: Where can I find Graphite Electrodes/Rods?  (Read 18008 times)

Offline triffid

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #15 on: November 07, 2008, 08:16:58 PM »
If you want free carbon rods I would tear open old "D" size flashlight batteries to get them.Of course you would want to clean them off as they will have black powder on them (magnesium dioxide).I found that soap and water works very well.Rinse well and let dry overnight.Also just a wild thought on my part.I recently was reminded that coal is over 90% carbon.
So maybe coal is conductive?(no I haven't tried it).If it is then weird and exotic electrodes could be carved from it?Just a thought for the avid experimenter here.Triffid(dry wood is 50%carbon)

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #15 on: November 07, 2008, 08:16:58 PM »

Offline triffid

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #16 on: November 07, 2008, 08:43:55 PM »
Coal is made from wood and the different grades of coal have higher % of carbon in them than wood.Even peat is more than 50% carbon.Triffid


Offline AbbaRue

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #17 on: November 07, 2008, 09:20:50 PM »
You can buy Carbon Gouging Rods at any dedicated Welding supply store.
I bought a box of 50 of them for $26.  They are 12 inches long and 1/4 inch thick.
They have a copper coating on them but you can easily peel the coating off,
Once you get it started at one end, it just peels off in a spiral.  Start one end with a knife scrape and start peeling.

I tried using coal for an electrode, it does conduct electricity very well but it is almost impossible to cut or shape it.
It is so brittle that it keeps crumbling, also very hard material, so cutting it would need a hack saw.
The Carbon Welding Rods are much easier to work with. Just make a small cut in the rod and then you can snap it.

 

Offline triffid

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #18 on: November 09, 2008, 10:46:44 PM »
I had a piece of hard coal and a voltmeter handy but my attempts to see if it was conductive were negative.The piece of coal has been in my collection in the  open air for several years.Maybe a fresh piece of coal from the ground would
be conductive????
After my negative results I seemed to remember that carbon has to be in sheets or layers of atoms to be conductive.Like graphite.I guess its best to stick with graphite or carbon?Triffid


Offline elektromann

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #19 on: November 09, 2008, 11:35:12 PM »
 
graphite and coal.
There must be differences
With a graphite. Stylus, you can write and draw.
With charcoal too.
But with normal heating coal and lignite, Braunstein not.
Graphite powder can be used for door locks to "smear" To Auto-Oil to improve. But coal particles will destroy the parts. Graphite are microscopically thin wafers, which glide and therefore concerted smear, as well as write on paper
      
Its are two different materials. i have both in from of me to work sometimes with them.
EM

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #19 on: November 09, 2008, 11:35:12 PM »
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Offline GestaltO

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #20 on: November 10, 2008, 12:13:25 AM »
it's not that they are different elements its just the way the "atoms" are arranged. if you wanted to get really technical then graphite is the purest form of "coal"

coal is just a name given to a fossil fuel made in a certain way. coal is comprised mainly of carbon, hydrogen and oxygen, the higer the carbon content the "purer" the coal is classified as going from lignite (brown coal) around 65% carbon to anthracite which is around  90+% carbon. graphite is not generally regarded as a coal due to the fact is not utilised in mainsteam as a fuel because its ridiculously hard to ignite it, but technically it is pure coal, comprising 100% carbon, aside from any impurities which we generally find in most elements (nitrogen in a dimaond being a good example)

technically peat is a form of coal too. but extremely soft. if i remember correctly all the peat in the world equates to some crazy amount of energy like 10 terajoules or something...cant remember the exact figure.

Offline pese

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #21 on: November 10, 2008, 11:10:37 PM »
pese:

Graphite is carbon.

Bill
[/quote
DIAMOND is also CARBON
(pur!)

all have chemical formula "C".
But al is differnt  in use, workink and possibility to use them.
Pese]

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #21 on: November 10, 2008, 11:10:37 PM »
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Offline jadaro2600

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #22 on: November 11, 2008, 03:25:12 AM »
Well, here's a quick source: http://www.overunity.com/index.php?topic=5317.msg120810, also, you could use the larger graphite from drafting pencils for experimentation, they're much larger and come in a variety of hardnesses.  These can usually be purchased at office supply stores or college book stores and provide a simple alternative for testing purposes until you can move on to (EDM) electrode discharge machining graphite.

A warning about using salt as an electrolytic with water though, chlorine is given off.  If you stick with small currents for testing, this shouldn't be a problem; but I wouldn't use salt period, not in conjunction with graphite electrodes, it's just not a good idea.


Offline xrdcarbon

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #23 on: February 29, 2016, 03:02:14 AM »
i suggest XRD Graphite Manufacturing Co.,Ltd,top china graphite rods supplier,here is their official website: http://www.xrdcarbon.com/
hope can hlep you!

Offline sm0ky2

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #24 on: February 29, 2016, 06:35:25 AM »
I get all of mine out of dead batteries.
single-cell they are in the center, small ones.
a 9-v has 6 of them, small ones.

the square-rectangle, 6-v batteries have great, large electrodes in side them.
these I used many times in electrolizer units (H2O), several battery experiments,
electroplating/unplating units, etc.
They are a carbon (graphite) powder, with an electrically conductive glue-like binder, that holds their form.
they are stable in most conditions and do not corrode.

Free Energy | searching for free energy and discussing free energy

Re: Where can I find Graphite Electrodes/Rods?
« Reply #24 on: February 29, 2016, 06:35:25 AM »
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Offline sm0ky2

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #25 on: February 29, 2016, 06:38:05 AM »

A warning about using salt as an electrolytic with water though, chlorine is given off.  If you stick with small currents for testing, this shouldn't be a problem; but I wouldn't use salt period, not in conjunction with graphite electrodes, it's just not a good idea.

it also leaves sodium-hydroxide in your tank, which over several cycles can become caustic.

Offline gravityblock

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #26 on: March 01, 2016, 07:40:55 AM »
I get all of mine out of dead batteries.
single-cell they are in the center, small ones.
a 9-v has 6 of them, small ones.

the square-rectangle, 6-v batteries have great, large electrodes in side them.
these I used many times in electrolizer units (H2O), several battery experiments,
electroplating/unplating units, etc.
They are a carbon (graphite) powder, with an electrically conductive glue-like binder, that holds their form.
they are stable in most conditions and do not corrode.


How to make an Electrical Arc Furnace with the electrodes (video)


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Offline ignacio

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Re: Where can I find Graphite Electrodes/Rods?
« Reply #27 on: March 02, 2016, 12:20:25 AM »
Yo uso los carboncillos para dibujo, he podido alcanzar los 10.000º C.

charcoals for drawing, I use crayons for drawing, I could reach 10,000th C

 

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