Where to get graphite. Where to get graphite at home. Graphite rod: application. Battery made of foil, cardboard and coins

What do steel carburizing, lock lubrication and fingerprinting have in common?
You will find the answer under the cut, although the spoiler is this little vial.

Once I came across a video on how to significantly strengthen steel at home. The author of the video gutted ordinary penlight batteries, took out graphite rods from them and sawed them with a file. The resulting powder is suitable for carburizing steel. Simply put, this is the saturation of steel with carbon atoms. They are built into the crystal lattice of iron and enhance the energy of its interatomic bonds. All that is needed for this process is to dip the part in graphite and heat it up strongly. There, in the video, a nail flattened and processed in this way was used as a drill for metal. A nail is like a drill for metal. Metal, Carl! Of course, I was very impressed, but then it didn’t come to cutting the batteries.

Now you no longer need to accumulate dead batteries, tear them apart with wire cutters, poke around in sticky reagents, take out graphite and saw it with blackened fingers on a file. Everything was done for us by professionals.

Here it is, a bottle of graphite dust:

Expanding the package:

Opening the lid:

The bottle is polyethylene, airtight. The lid has a spout, cutting off the tip of which you can get a convenient "oil can". We must not forget that the main purpose of graphite powder is to lubricate rubbing mechanisms.

The thing is that oil is not very suitable for lubricating locks. Dirt quickly sticks to parts wetted with oil, and soon the lubricant begins to work as an abrasive. This is especially true for locks with through keyholes. It drives dust into such drafts, no worse than a cooler in a system unit.

So here is the graphite:

We look through the microscope. The division price of the ruler is 0.5 mm.

And here we blow it into the castle:

Works smoothly and reliably.

Now let's try carburizing the metal. To do this, I made an impromptu tray from a steel gypsum profile:

I used a welding machine as a power source. The guinea pig was a bit from a screwdriver. The cheapest, made of "plasticine" steel. Before starting, I made a notch on it with a needle file. It is sawn approximately at the level of a pencil, well, maybe a little worse.

Then the cementation process began:

And so it went on for about 5 minutes. When the bit cooled down, I cleaned off the stuck graphite and saw that the part was a little “well done”, i. melted. Well, nothing, let's try it with a needle file:

Here are two notches. Sawing, also sawing, but it seems a little more difficult. Closer to a drop of frozen metal - it does not saw at all.
The conclusion from the experiment is ambiguous. Not everything is as rosy as in the original video. You need to fill your hand, experiment, select the cementation time, currents and the required temperature. Maybe combine with hardening. Then the effect will be.

Finally, there is a third application for graphite powder.

Let's play detective!

We will need graphite powder, a soft brush, transparent tape, a sheet of paper and an object that was in the hands of the criminal. In our case, this is a glass. The freshly washed and dried glass was taken with clean, dry hands.

We apply a little graphite to the brush and cover the sides of the glass with light movements.

I did it for the first time in my life, and for the first time it turned out pretty good in my opinion. There was a thumb.

And here is the index and middle.

Now we stick transparent tape on the prints, trying to avoid bubbles and wrinkles. Then we tear it off and carefully stick it on paper.

Everything, now the fingers will not go anywhere.

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Hello! Today we will talk about graphite. If you have assembled a serious metal detector, then you probably had to shield the coil (sensor). This can be done in two ways: wrap the coil with foil or. Covering with foil is not a good way, so many people cover the sensor with graphite. But if you, in some extraordinary way, do not have the opportunity to buy graphite, what will you do? For example, you spent all your money on radio components and assembling the electronic unit of a metal detector, but there is no money for graphite. Don't give up! You can get graphite from ordinary batteries. C and D format batteries will have more graphite.

You might be thinking: “If there is no money, where will I get batteries?”. Friends, it's very simple. You have probably noticed that in large stores, shopping centers or in the market, they put boxes for collecting unusable batteries and accumulators. That's where you can get these batteries for graphite mining. We have these boxes with batteries in ATB stores, so you can easily find different types of batteries. I rummaged through the box and pulled out three D batteries.

If you found such batteries, congratulations, you can start mining graphite. All we need is: pliers, a screwdriver, an awl. Before disassembling the battery, I advise you to lay a newspaper or some sheet of paper on the table.

The first thing to do is remove the label. It is simply glued to the battery, so there will be no problems with it.

Since, on the other hand, the battery is not collapsible, on the other hand, it will be inconvenient for us to disassemble the battery. When we decided on which side we will disassemble the battery, we take a screwdriver and bend the curved edges to it.

When the edges are bent, the battery will look something like this:

Now we take an awl and remove the contact pad of the battery. My battery had two small holes (probably for evaporating gas to escape), so it was easy for me to do this.

When the contact is removed, the battery will look something like this:

We can see the end of the graphite rod, and the plastic plug.

We remove this plastic plug with an awl.

After removing this plug, our next task is to remove this black powder (a mixture of manganese oxide 4 and carbon). You can gently try to pull out the graphite rod with pliers, but I couldn’t do it, because the powder interfered. Loosen this powder with an awl and shake it into a bag. After that, you can easily get a graphite rod.

Of course, the battery is easy to buy at any hardware store, electronics store or hypermarket. However, for the sake of interesting experiments and gaining knowledge of the "school of life", it is still worth knowing how to make a battery with your own hands. Moreover, the process of such work is very entertaining and uncomplicated.

Lemon battery: two options

For the first option you will need:

actual lemon;
galvanized nail;
2 small pieces of copper wire;
copper coin;
small light bulb.

The work process is as follows:

Make two cuts on the fruit at some distance from each other.
Place a nail in one notch and a coin in the other.
Connect a piece of wire to both the nail and the coin. The second ends of this makeshift wiring should be in contact with the contacts of the light bulb.
And all - let there be light!

A homemade sour fruit battery can also be made using:

the same lemon;
paper clip;
light bulbs;
2 pieces of insulated copper wire with a diameter of 0.2-0.5 mm and a length of 10 cm.

The algorithm is the following:

Strip 2-3 cm of insulation from the ends of each of the wires.
Attach the exposed part of one wire to the paperclip.
Make two cuts in the lemon 2-3 cm apart - along the width of the paper clip and for the second wiring. Insert these elements into the fruit.
Attach the free ends of the wire to the contact part of the light bulb. If it does not catch fire, then the selected lemon is not powerful enough - connect several fruits in series with each other and repeat the experiment.

Potato battery

Stock up:

two potatoes;
three wires with clamps;
two chrome nails;
two copper nails.

So, how to make a battery from tubers:

Give the symbol for each of the potatoes - "A" and "B".
Insert a chrome-plated carnation into the edges of each of the tubers.
In the opposite edge - a copper nail. In the body of potatoes, nails should not intersect.
Take any device powered by a battery, remove it and leave the compartment open.
The first wire should connect the tuber's copper pin "A" to the positive pole in the battery compartment.
The second wire connects the chrome potato pin "B" to the negative pole.
The last wire connects the chrome nail of tuber "A" to the copper nail of tuber "B".
As soon as you close all the wires in this way, the potato will begin to power the device with energy.

Potatoes in this experiment can be replaced with a banana, avocado, or any of the citrus fruits.

Battery made of foil, cardboard and coins

Before you make a battery, prepare:

copper coins;
vinegar;
salt;
cardboard;
foil;
scotch;
two pieces of insulated copper wire.

Everything is ready? For business:

First you need to thoroughly clean the coins - for this, pour vinegar into a glass container, add salt there and add money.
As soon as the surfaces of the coins have changed and sparkled, remove them from the container, take one and circle its outline on cardboard 8-10 times.
Cut out cardboard circles along the contour. Then place them in a container of vinegar for a while.
Fold the foil several times so that you end up with 8-10 layers. Circle a coin on it and also cut out round details along the contour.
At this point, start assembling the battery. It is done like this: a copper coin, cardboard, foil. In this order, add up all the components you have in a column. The final layer should be only a coin.
Remove the insulation from the ends of the wires.
Cut off a small strip of adhesive tape, glue one end of the wire on it, put an impromptu battery on top, and the tip of the second wire on it. Fasten the structure securely with adhesive tape.
Connect the second ends of the wire to the "+" and "-" of the device to be energized.

Eternal battery

Prepare:

glass jar;
a silver element - for example a spoon;
food film;
copper wire;
1 teaspoon of baking soda;
4 vials of glycerin;
1 teaspoon 6% apple cider vinegar

Wrap the spoon tightly with cling film, leaving its top and bottom ends slightly bare.
Now it's time to wrap the spoon over the film with copper wire. Remember to leave long ends at the beginning and end for contacts. Make space between turns.
And again a layer of film, and behind it - wires in the same way. There should be at least seven layers of "film-wire" on this impromptu reel. Do not overtighten the layers - the film should wind freely.
In a glass jar, prepare a solution of glycerin, salt, and vinegar.
After the salt has dissolved, the coil can be immersed in the solution. As soon as the liquid becomes cloudy, the "eternal" battery will be ready for use. Its service life directly depends on the silver content in the base element of the coil.

Graphite rod: application

The graphite component from old batteries is not only the basis for a new energy source, but also an element that can be used for electric welding. This is done in a simple way:

Sharpen a graphite rod from an old battery at an angle of 30-40 degrees.
Use an alligator clip with a non-conductive handle to connect it to the "+" and "-" of an AC or DC power source.
Connect "0" and "-" to the cleaned part.
The electrode must be sharpened periodically as it burns out.

How to make a battery at home? You will need improvised materials, a little enthusiasm and perseverance. In exchange, you will receive alternative energy sources.

kar 09-12-2010 17:11

And where can I get a graphite rod 15 centimeters, round or square, 15-20 mm in diameter

madmax 09-12-2010 19:23

tear down an old radio

Ivan_Medvedev 09-12-2010 19:57

OOOVery old battery-operated lamp?

5 years ago (how time flies) there was a graphite shaft from graphite refrigerators. Now neither that office, nor that graphite ...

DiXXX 09-12-2010 22:37

The AC definitely has it.

Ivan_Medvedev 09-12-2010 22:48

In the summer, I would also recommend finding a discarded battery from a navigational sign (buoy, milestone, etc.).

didSemen 09-12-2010 23:14

quote: tear down an old radio

I think it's a little different. The active resistance is much greater than that of graphite (if you mean the core of the ferromagnetic receiver antenna, which looks very similar). Typically, we used graphite rods of this geometry for soldering copper of a sufficiently large cross section ...

DiXXX 09-12-2010 23:37

quote: Originally posted by Ivan_Medvedev:

In the summer, I would also recommend finding a discarded battery from a navigational sign (buoy, milestone, etc.).
There, the anodes are just - a graphite rod Ø15 mm, 15-18 cm long.

That's it, navigation 2011 is canceled
I have powdered graphite, about half a kilo. I just don't know how to compress it into a rod.

Ivan_Medvedev 09-12-2010 23:45

Discarded (!!!) battery.
Spoiling the existing AtoN - how is it? Even the words (censored) are not selected ...
It's bad - that's it!

Rods, plates, etc. they are made either by machining a piece of graphite or by sintering powder with clay. In general, technology is not for the kitchen.

kar, if it's not a secret - why do you need a rod?
Maybe together we can conjure a replacement ...

kar 10-12-2010 08:46

Ivan_Medvedev: It's no secret, for many years I have had a device for the production of living and dead water, the central graphite electrode fell apart.

DShooter 10-12-2010 09:05

quote: device for the production of living and dead water

What do you do with the dead? For mother-in-law?

Ace_Odinn 10-12-2010 09:15

I know these rods. Spread it here on the forum even.
You can look in my photos =)

kar 10-12-2010 11:01

dead for disinfection, gargle with a sore throat, rinse the nose with a runny nose. On the mother-in-law no longer check

G333G333 10-12-2010 17:19

quote: Originally posted by kar:

dead for disinfection, gargle with a sore throat, rinse the nose with a runny nose.

kar
I think the topic is interesting to many (living and dead water) I also heard something ..
Shared with the people, suddenly someone will help in life.
If it `s not a secret..)

------------------
Everything will be fine... !)

vasbond 10-12-2010 18:07

quote: Originally posted by Ace_Odinn:

There are abandoned electrodes from sea searchlights in Fort Gray Horse.
There, the diameter is similar and it is about a meter long.
The entire room was littered with these graphite rods.

Yes. The last time was in the summer - they are lying around ...
It's here 59.990812.29.220284.

ober 10-12-2010 20:01

and I made such a device from two stainless steel rulers

kar 10-12-2010 22:50

quote: and I made such a device from two stainless steel rulers

Yes, you can do it in different ways, but I have a ready-made device, bought back in Soviet times, I want to restore it.
And about water - type "living and dead water" in the search engine. It's full, start and form your own opinion. And finished appliances are sold

Hello! Today we will talk about graphite. If you have assembled a serious metal detector, then you probably had to shield the coil (sensor). This can be done in two ways: wrap the coil in foil or. Covering with foil is not a good way, so many people cover the sensor with graphite. But if you, in some extraordinary way, do not have the opportunity to buy graphite, what will you do? For example, you spent all your money on radio components and assembling the electronic unit of a metal detector, but there is no money for graphite. Don't give up! You can get graphite from ordinary batteries. C and D format batteries will have more graphite.

The first thing to do is remove the label. It is simply glued to the battery, so there will be no problems with it.

When the edges are bent, the battery will look something like this:

Now we take an awl and remove the contact pad of the battery. My battery had two small holes (probably for evaporating gas to escape), so it was easy for me to do this.