Sometimes people ask how to make a neodymium magnet with your own hands. Let's try to figure out, as far as possible, and what is the process of manufacturing such products in general.
So, the devices we sell consist of an alloy that is 70% iron and almost 30% boron. Only some fractions of a percent in its composition fall on the rare earth metal neodymium, the natural deposits of which are extremely rare in nature. Most of they are in China, they are still only in a few countries, including Russia.
Before making neodymium magnets, manufacturers create sand molds for them. Then the tray with the molds is doused with gas and subjected to heat treatment, due to which the sand hardens and retains the future outlines of the metal blank on its surface. Hot metal will later be placed into these molds, from which, in fact, the necessary products will be obtained.
Now let's take a closer look at how a neodymium magnet is made. Unlike ferromagnetic products, the metal here does not melt, but is sintered from a powder mixture placed in an inert or vacuum environment. Then the resulting magnetoplast is pressed with simultaneous exposure to an electric magnetic field a certain intensity. As we see, even initial stage production, it is noticeable that the question of how to make neodymium magnets at home sounds out of place. The operations and the equipment used are too complicated. Creating such conditions at home is hardly possible.
After the blanks are removed from the molds, they are subjected to mechanical processing - they are carefully polished, then they are fired to improve the coercive force of the products.
Finally, we come to final stages, which will help to finally answer the question of how neodymium magnets are made. The sintered NdFeB alloy is refinished on the machine with a special tool. During operation, a cooling lubricant is used to prevent overheating or ignition of the powder.
applied to magnets protective covering. This is due, firstly, to the fact that the sintered metals are quite brittle and need to be strengthened, and, secondly, the metal will be protected from corrosion processes and other environmental influences. So manufacturers are worried in advance about how to make a neodymium magnet stronger and more durable. The coating can be copper, nickel, zinc. In the last phase of the production process, magnetization is applied by means of a strong magnetic field. Further - they are sent to the warehouse, and from there to the buyers.
So, after we examined the production process in more or less detail, it became clear that, probably, you should not seriously ask yourself the question "how to make a neodymium magnet at home." After all, this requires not only the presence of certain knowledge, but a lot of complex units.
It has long been a custom for travelers to bring magnets from their travels. Have you tried to create such a product yourself? In our article, we offer you 7 ways to create exclusive magnets.
Method One: Image
Material that will be needed:
- interesting drawings (cut out a picture from magazines);
- glue;
- magnets in the form of a circle with a diameter of 1.25 to 1.75 cm;
- circles of glass, (should match the size of the magnets).
All you need to do is stick a picture to the magnet, and a glass circle on it. Glass mugs are sold in craft stores.
If a magnet is visible through the picture, it will be advisable to add one more detail. Namely: prepare mugs right size from white cardboard and glue it under the picture.
Method two: they are alive
A do-it-yourself fridge magnet can be a living creature. To do this, you should prepare:
- magnet;
- hot glue gun;
- screwdriver
- cork stoppers;
- small plants;
- some land;
Stages and features of manufacturing:
- Make a hole in the cork.
- In depth - to the middle of the cork. It is important not to damage the edges.
- Using a glue gun, you need to glue the magnet to the cork.
- In the resulting void, immerse the earth and plant a plant.
- As a result, you got a kind of pot.
Do not forget to take care of the plant you have planted. After all, it will grow up and ask to be moved to new house, and in the existing ones you can grow a new flower.
Method three: magic clay
Making refrigerator magnets will not be difficult when you have the following materials at your disposal:
- magnets;
- polymer clay;
- ink;
- hot glue gun.
And here are the tools:
- Bakeware;
- rolling pin (or any other object that can roll out clay);
- sandpaper (you can use a nail file for manicure);
- stamps.
To make a souvenir, you need to roll out the clay to make a sheet of approximately 5 millimeters in thickness. The pattern is applied to the material with stamps, and with the help of clay molds, individual figures need to be cut out.
Method four: a magnet in a bag
If scratches on your fridge bother you, you can easily prevent them by making a fabric magnet. simple technique manufacturing will allow you to change the so-called bag as soon as you like.
All you need for such a small masterpiece is:
- magnets;
- colored patches;
- threads;
- needle;
- scissors.
First you need to create blanks for magnets from a flap. The size of the blanks should be about 3 times over size magnet. The edge of the fabric must be folded and stitched so that the stitches lie as close as possible to each other. As a result, you received such a bag for yourself. Put a magnet inside, tighten the thread, tie it and cut it off.
Between magnet and cloth front side you can put a little cotton wool or foam rubber. Then the product will acquire volume.
Method five: wood is always in fashion
Prepare your tools:
- saw for wood;
- electric drill;
- drill to it;
Manufacturing technology is simple. It consists of the following steps:
- Saw the branch, thus creating "washers", the thickness of which is approximately equal to three centimeters.
- Sand the edges (if needed)
- Drill a small hole about 3 cm deep in the middle of the washer.
- Glue a magnet into the hole.
- Drying time: 6 to 8 hours.
If desired, the pucks can be decorated with a pattern or in another way.
Method six: oh, this is amazing lego
To make a bright, colorful and functional souvenir, select the details you like from the designer, prepare the required number of magnets and a hot glue gun.
The creation process is elementary: you need to glue the part to the magnet. However, there are 2 important factors to consider:
- DO NOT use magnetic tape. She is weak to hold the cube. Such a magnet will not be durable.
- Hot glue can be replaced with super glue.
It should be said that this product must dry for at least 24 hours. Such a bright magnet can be used not only by adults, but also by children.
Method seven: they also split
To create a magnet that will not only magnetize, but which can also be pinned, you need:
- magnetic tape;
- wooden clothespins;
- acrylic paint;
- thin brush;
- sequins.
Now that you're all set, get to work. First, decorate the clothespin. Secondly, it can be simply painted with paint. Thirdly, glue the tape on the other side. Everything ingenious is simple!
Photo of fridge magnets
To date, I have not heard about neodymium magnets, probably only a deaf person. They are made from an alloy - NdFeB, which has excellent magnetic properties (it is not only powerfully magnetized, but also very resistant to demagnetization). It is not difficult to buy neodymium magnets in Moscow, but they can bring a lot of benefits to the household. Consider several non-trivial ways to use such magnets in the household. So,
The simplest and most fun are toys and puzzles. For this, rather weak small magnets are used, usually in the form of balls. Various complex forms and sculptures are assembled from them. But do not forget that such magnets should NEVER be given to children under 4 years old! A swallowed pair of such magnets, having pinched the wall of the intestine or stomach, can easily cause its perforation with all the consequences.
Neodymium magnets are great for fixing. In principle, a pair of medium magnets are quite capable of replacing table vise. For all that, it is more convenient to use magnets, since they can be used to fix parts of complex shape. 
Motorists will probably be interested in using neodymium magnets as an oil filter. If you hang it on the drain plug of the engine crankcase, then it will hold all metal inclusions in this place, which will then be easy to remove. 
Due to their strength, such magnets can be successfully used in search activities. For example, to find a fallen needle in a carpet, or a machine gun from the times of the Great patriotic war(for this, special search magnets with an eye for a rope). Can also be used to find reinforcement in walls. 
Since ancient times, magnets have been used by magicians to create the illusion of levitation. With the advent of neodymium, such tricks have reached a new level. 
You can also successfully magnetize various steel objects with such a magnet (screwdrivers, bits, needle tweezers, etc.). They can even re-magnetize a demagnetized ordinary magnet. 
Fixing inventory and tools. Special holders with magnetic properties will help you in the competent planning of the workspace. 
Repairing dents from body repair and ending with the repair of wind instruments. 
To delete data from magnetic media (hard drives, audio and video cassettes, credit cards). A powerful magnetic field perfectly removes all information. Fast and without extra effort. 
In general, neodymium magnets are simply indispensable assistant in the economy. Only when working with them, especially powerful ones, strictly observe safety precautions. If a finger or another part of the body gets between magnetic objects (I already wrote about children), this can end very badly. 
Take care of yourself!
Based on materials: http://neo-magnets.ru/
For many people, the magnet is still a mystery, although people got acquainted with this metal and the phenomenon in principle a very long time ago. Even then, a whole system for the manufacture of various magnets was developed. Today, this is far from uncommon, and even powerful magnets can be made at home.
Creating a magnet from improvised means
Of course, for many, this will even seem like something supernatural and perhaps even a shock, but even now, sitting at home, most people can make a magnet with their own hands. Below are four ways that describe how to make a powerful magnet at home.
Method number 1
The first and probably therefore the easiest way: to implement it, you just need to take any object that can be magnetized (the object must be metal) and draw it several times along the permanent magnet, and this should only be done in one direction. But, unfortunately, such a magnet will be short-lived and will lose its magnetic properties very quickly.
Method number 2
This method of magnetization is performed using a battery or accumulator for 5 or 12 volts. Most often it is used to magnetize screwdrivers and is performed as follows:
Is taken copper wire a certain length, which will be enough to wrap the screwdriver shaft 280 - 350 times. Best suited wire from transformers, or one that is intended for their production.
The object is isolated, in this case, with the help of electrical tape, the entire screwdriver shaft is wrapped.
The winding itself is performed and it is connected to the battery. One end is positive, the other is negative. The winding should be carried out turn to turn, evenly. The insulation must also be tight.
As a result of these manipulations, it will be much more pleasant to work with a screwdriver. With this operation, you can turn any old unnecessary screwdrivers into a really handy tool.
Method number 3
This option describes how to make a powerful magnet quite in a simple way. In fact, it has already been fully described above, but this particular method implies a different material. In this case, ordinary metal will be used, or rather a small piece of it, preferably a cubic shape and a more powerful coil. Now the number of turns must be increased by 2-3 times in order for the magnetization to be successful.
Method number 4
This method is very dangerous and is strictly forbidden to be performed by people who are not professionals in the field of electrics. It is carried out strictly in compliance with safety regulations, the main thing to remember is that only you and no one else are responsible for life and health.
He talks about how to make a strong magnet at home, while spending a small amount money. In this case, an even more powerful coil wound exclusively from copper will be used, as well as a fuse for a 220 volt network.
The fuse is needed so that the coil can be turned off in time. Immediately after connecting to the network, it will burn out, but at the same time, it will have time to go through the process of magnetization in such a period of time. The current strength in this case will be maximum for the network and the magnet will be powerful enough.
Powerful do-it-yourself electromagnet
First, you need to understand what it is. An electromagnet is a whole device that, when a certain current is applied to it, works like an ordinary magnet. Immediately after cessation, it loses these properties. How to make a powerful magnet from an ordinary coil and iron was described above. So, if you use a magnetic circuit instead of iron, then you will get the same electromagnet.
In order to figure out how to make a strong magnet at home that will work from the mains, you just need to remember a little information from the school physics course and understand that with an increase in the coil, as well as the magnetic circuit, the power of the magnet will increase. But this will require more current to unlock the full potential of the magnet.
But it is neodymium that remains the most powerful, they have all the most desirable properties and, with their strength, have small size and weight. How to make neodymium magnets with my own hands and whether it is possible at all and will be discussed further.
Making a neodymium magnet
Because of complex composition and a special production technique, the question of how to make a neodymium magnet with your own hands at home disappears by itself. But many are still interested in how to make neodymium magnets, because it would seem that if you can make an ordinary magnet, then it is also quite possible to make a neodymium one.
But everything is not as simple as it seems in reality. Serious companies are engaged in the production of such magnets; they use special technologies for very powerful magnetization of the material. And this is in addition to the fact that an alloy that is quite difficult to extract and manufacture is used. Therefore, this question can be clearly answered - no. If someone manages to do this, then he can easily open his own production, since necessary equipment he will already have.
Application of the created magnets
Application for industrial and economic purposes
Used in various electrical appliances. Especially common in devices equipped with speakers. Any dynamic head includes a magnet, ferrite or neodymium, in rare cases others are used. Magnets are also used furniture production, toys. In production, when filtering bulk materials.
Application at home
Fridge magnets are one of the most common uses for magnets. Also, some use them to stop meters, in order to reduce the fee by public utilities, but doing so is strictly prohibited, and inappropriate.
Conclusion
Based on this article, you can understand how to make a powerful magnet at home, without spending any special effort and material resources on it. But you should not experiment with a powerful network for people who do not understand electricity and generally have no idea how it works, because it is serious and very dangerous for human life.
Permanent magnets are suitable not only for childish fun or engineering work, but also for everyday use. IN Everyday life There are many uses for magnets.
1. CLEAN AQUARIUM
To clean the aquarium from green plaque, place with inside a glass magnet with a sponge glued to it, and another powerful magnet on the outside. They will be attracted to each other and press the sponge against the glass. Move the magnet along the outer wall of the aquarium, and the sponge will clean the glass from the inside.
2. "LOCK" FOR THE CABINET
If the cabinet door involuntarily opens, it is not necessary to insert the lock. Make a "latch" out of two magnets, fixing one on the door and the other inside the cabinet.
3. SEARCH ENGINE
The easiest way to find a lost metal item (nails, keys or a needle) is to attach a magnet to some kind of handy object and move it under furniture or on the floor for a while. During repairs, the location of the reinforcement in the walls can be determined in the same way.
4. FOR MOTORISTS
So that on a frosty night, condensate does not collect and freeze in the lock of the car, which makes it difficult to turn the mechanism with a key in the morning, when leaving, attach a magnet to the keyhole. It will block the access of moist air to the castle.
5. CHILDREN'S CREATIVITY
If you attach a magnet with reverse side small children's crafts, then it can be hung, for example, on the refrigerator.
6. FOR HEALTH
It has been proven that beads, bracelets, earrings, rings made of small magnets, belts, bandages and insoles with sewn-in magnets normalize blood pressure, speed up metabolism, strengthen the immune system, cardiovascular system, and relieve pain from rheumatism, arthrosis and arthritis. But remember that it is not recommended to be treated with magnets for people whose heart activity is supported by a pacemaker, as well as for cancer patients suffering from mental illness, hypotension, tuberculosis, patients with fever, pregnant women.
7. IN THE KITCHEN
If a piece of magnet is sewn into a hot cloth tack, you can always keep it at hand: on the wall of the refrigerator, on gas stove, car wash and so on.
8. IN THE GARAGE
The garage is, traditionally, the abode of any self-respecting man, and almost every member of the stronger sex wants all the tools he needs to be at hand and stored in an orderly manner. How to achieve this? Of course, you can build a whole cabinet or table for tools, but this will require a lot of time and effort from you. In addition, such a structure will take up extra space in the garage. A simpler and easier alternative is to buy magnets and attach them to the wall, after which you can attach your tools to the magnets. The advantages of this use of magnets are obvious - they will save you useful space in the garage, and all the tools will always be in sight.
