Search magnet for gold and silver: how to magnetize metal
Many companies offer to buy a search magnet for gold and silver. Every person at least once in his life dreamed of finding a treasure. We need to figure out whether it is possible to attract precious metals to a regular magnet?
Magnetic field and metals that conduct it
At the macroscopic level, under the influence of a magnetic field, some substances can be attracted. This also applies to metals and alloys. When hanging a new magnet on the refrigerator, many people don’t even think about why it doesn’t fall off.
The most attracted metal is iron, which is used in alloy with other metals in the production of refrigerators. Now try attaching a gold ring or chain to this magnet. In this case, the gold product will not hold up.
If you perform this trick with a silver item, you will get a similar result. Gold reacts worse to a search magnet than silver, since the latter contains more impurities.
The things that we used to call gold and silver are not actually made of mono-metal, they are alloys. They could “stick” to the magnet if it were larger, more powerful, if the alloy contained a pronounced metal that could be quickly attracted. To do this, consider the types of interaction of substances with a magnetic field.
Here are the main ones:
- Ferromagnets – strongly attracted (for example, iron, steel, nickel);
- Paramagnetic materials are weakly attracted (for example, platinum, aluminum, magnesium, oxygen). This effect can only be detected using special equipment.
- Diamagnets - magnetized against the direction of the external magnetic field and repelled by the magnet (for example, plastics, gold, silver, copper, water, carbon).
Having bought an ordinary magnet, you will only attract ferromagnets; in this case, you will have to forget about a treasure of gold. If you are determined to look only for products made of gold and silver, it is better for you to purchase a metal detector. It works on a different principle: it does not attract metals, but makes sounds when searching for them. Then all you have to do is dig in the right place. Decide what to buy so as not to throw money away and not be disappointed with the purchase.
Search magnets
To lift ferromagnetic metals and alloys from the bottom of rivers, ponds and wells, magnets F 200 – F 400 are used (depending on the difficulty of access and the size of the load). Even if they are the same size, the tearing force can be different, it depends on the content of neodymium (a chemical element). The more neodymium, the more powerful the magnet. For one person, a model with a diameter of up to 1 m and a lifting force of up to 300 kg will be optimal. It is important to know that flat objects attract better than round ones.
Safety precautions or what to be careful with
When using a magnet, you must adhere to certain rules:
- Neodymium should not be heated above 80°C.
- The magnet affects the magnetic fields of electrical devices, pacemakers, watches, credit cards.
- The large device is stored and transported in a non-magnetic, for example, plastic container.
- You cannot stand between a large magnet and an iron barrel/door, etc., it will be attracted, and a fracture of an arm/leg or other part of the body may occur.
- Wipe the device after each use, clean it from dirt, do not leave it without a case, and it will serve you for many years, since the device does not break down and does not require repair!
Have an easy search, precious finds and more gold!
Source: https://ToZoloto.ru/o-zolote/dobycha/poiskovyj-magnit-na-zoloto-i-serebro.html
What is a neodymium magnet?
Neodymium is the most powerful permanent magnetic material currently known to scientists. It's also very affordable, making it suitable for a variety of uses.
Rare earth magnets
The chemical composition of a neodymium magnet: Nd2Fe14B, in other words, two neodymium atoms, 14 iron atoms, and one boron atom. Therefore, such magnets are sometimes called “neodymium-iron-boron”.
These are rare earth magnets which, unlike conventional ferrite and ceramic magnets, contain atoms from the lanthanides or actinides of the periodic table. Magnets made from neodymium are the most powerful rare earth magnets.
Their strength is often given in Gauss (MegaGauss-Oersted, magnetic energy), and depending on the form and class can reach 13,500 Gauss or more, although 2,000 Gauss is common. For comparison, refrigerator magnets produce approximately 50 Gauss.
Application of neodymium magnets
Neodymium magnets are relatively inexpensive, so they are used quite often both in industry and at home, as well as by amateurs and researchers. For example, every modern computer hard drive has a small segment of neodymium magnet that helps guide the needle to read data.
You can also find neodymium magnets in expensive speaker systems, furniture fastenings, various accessories, etc. Neodymium magnets are also used as souvenir magnets.
The only disadvantage of neodymium magnets is that they lose part of their magnetic energy at high operating temperatures. This eliminates the use of neodymium magnets in electronics, where a lot of thermal energy is generated.
However, there are different classes of neodymium magnets that can be used at temperatures up to 200 degrees Celsius.
Advantages of neodymium magnets
The main advantage of neodymium magnets is their strength : for example, a magnet the size of a 5-ruble coin (25 mm in diameter and 5 mm in thickness) can withstand a weight of almost 9 kg! Two magnets connected to each other at the wrong angle can injure the skin to the point of bruising. Large magnets (for example, 50*30 mm) are extremely dangerous, so precautions must be taken when working with them. But if precautions are taken, neodymium magnets can be used in entertainment and even educational projects.
The second, but no less important, advantage of neodymium magnets is their service life . And although the technology for producing neodymium magnets is only 30 years old, we can already say that neodymium magnets lose only about 1% of their magnetic energy over 100 years! For comparison, ordinary ferrite magnets last no more than 10 years, after which they become just a piece of iron.
Have you ever wondered why ferrite magnets are most often made in the shape of a horseshoe, with one leg painted red and the other blue? The answer is simple: manufacturers tried to short-circuit the magnetic field lines of ferrite magnets to increase their lifespan. Neodymium magnets do not require this, so they can be made into almost any shape, and can also be made “multipolar”, i.e.
having several poles on the surface.
Magnetic phenomena
In our online store you can find film for visualizing magnetic field lines in a physical environment. Carefully placed neodymium magnets can promote diamagnetic levitation, a peculiar phenomenon that can lift small objects into the air without making contact with it.
If you try to drag a magnet across a non-magnetic surface (aluminum, copper), you will feel the force of “magnetic disturbance” or simply the resistance of eddy currents that arise when the magnet moves over a non-magnetic surface.
Try to repeat these experiments with our magnets, and you will not regret it!
It’s not for nothing that they say that magnetism is the most beautiful phenomenon of physics that we ever encounter!
Source: https://magnit96.com/blog/article/chto_takoe_neodimovyj_magnit/
5 words that attract poverty, failure and debt
In most cases, poverty comes to people not because of a strange coincidence of circumstances or banal failures, or bad energy from stars. Most often, we earn less than we want because of our love for words that attract poverty.
The power of words and thoughts can change the future and the present. A lot depends on what and how we say. Try to say less of the words that will be discussed below to increase your chances of success in work, in business and in matters related to finances.
"Poor"
Don’t say to yourself or someone close to you, “I’m sorry,” “poor thing,” “poor thing.” This word can really make you poor and unsuccessful. It attracts problems, failures and debts like a magnet.
Don't say, "I'm poorer than him." You can always find a synonym or replacement for this word. If you don’t do this, then getting out of the financial hole will be very difficult.
"No"
As you know, in order to receive something, you need to give something. If you refuse people, then it is not surprising that the Universe does the same, delaying the positive energy that helps you get rich.
If you are forced to refuse due to certain circumstances, then do not say no. Say something different. For example, you can say: “Sorry, next time.” Saying “no” too often can set you and your family up for failure.
"Master" and "Chief"
You may have a person who gives you work, but you should not call him a boss, or even less an owner. This will have a very bad effect on your self-determination, because each of us is our own boss.
Don't put anyone above yourself so as not to lose confidence and fortitude. You have to remember that it all depends on how you work and what you do. You are doing this for yourself. Excellent options in different situations: “employer”, “person in a higher position”, “chief” or even a first name and patronymic.
"Must"
It is very popular, for example, to say in a store “how much do I owe you?” At first glance, there is nothing dangerous in this, but the message is quite strange. You shouldn’t get yourself into debt, because words have special power.
There is also no need to say “I have to.” It’s worth replacing this with “I need.” We need to help our parents and love each other, love our children, but we should not do something for the boss, for the company. If you stop repeating this, you can get rid of debts, pay off your mortgage, loans, and so on faster.
“Lave”, “loot” and other analogues
Money is what you get for your work. This is the embodiment of your efforts, so it is better not to express yourself in a dismissive tone. This is how you devalue yourself.
Call money “money”, “your wealth”, but not “cabbage”. This is useful for those who work hard, leaving a lot of energy at work. This will increase productivity significantly and increase income. Also, if you get rid of these words in your vocabulary, you will be able to lose less money for no reason.
You can get rid of problems and achieve well-being with the help of password words. Use them to make your life brighter and your business more successful. Good luck and don't forget to press the buttons and
Words can not only influence a person’s life, but also attract a lot of problems to him.
Our thoughts determine the reality around us. Many people naively believe that their words and actions will never
Many words have strong energy. By saying them every day, you can change your life for the better.
There are many people in the world around us who are capable of causing harm, so everyone who strives for a prosperous life should
Source: https://dailyhoro.ru/article/5-slov-prityagivayuschih-bednost-neudachi-i-dolgi/
About magnets
Neodymium magnet is a phrase that everyone has heard at least once, but not everyone knows what it is and what it is needed for. Surely as a child you played with magnets and with 99% accuracy we can say that they were ferrite magnets. You could find such magnets in old speakers and many other places.
Neodymium magnets appeared relatively recently, and they could be found on sale in the 90s. Such magnets are made of neodymium, iron and boron. It is neodymium, a metal of the lanthanide group, that is the basis for creating magnets with fantastic adhesive strength.
It is impossible to pull large neodymium magnets away from each other manually.
A neodymium magnet (also known as NdFeB, NIB, or Neo magnet) is an extremely powerful magnet made from rare earth metals: typically an alloy of neodymium, boron, and iron, forming the Nd2Fe14B tetragonal crystal structure. It was first developed in 1982 by General Motors in partnership with Sumitomo Special Metals.
These are the strongest permanent magnets commercially available, with more than 18 times the magnetic energy of conventional magnets. Neodymium magnets come in several classes, characterizing the strength of their attraction, for example, N28, N35, N38, N40, N45. The strongest magnet on this list is N45, but there are stronger ones.
A good neodymium magnet has a magnetic induction of at least 12,500 Gauss (Gauss is a unit of magnetic induction).
They are much stronger than the more common ceramic magnets. Neodymium magnets are much more powerful than conventional magnets, but they are also more expensive than conventional ones. Therefore, you must work with them as carefully as possible, observing proper safety precautions.
Their magnetic fields can influence each other even at a distance of more than 30 centimeters. Please note that neodymium magnets are a brittle alloy.
They are usually coated with a hard nickel-plated protective layer, but do not allow multiple magnets to meet at their full strength, otherwise they may be damaged and small pieces of metal may break off on impact.
This video shows how super magnets destroy various objects upon collision :
Neodymium magnets are differentiated into classes depending on the magnitude of their magnetic moment per unit volume.
Higher values of this indicator indicate stronger magnets and range from N35 to N52 .
The letters following the class name indicate its maximum operating temperatures (referring to the Curie temperature), which range from M (up to 100 degrees Celsius) to EH (200 degrees Celsius).
Classes of neodymium magnets:
► N35-N52
► N33M-N48M
► N30H-N45H
► N30SH-N42SH
► N30UH-N35UH
► N28EH-N35EH
Neodymium magnets attract metal objects with such great force that if your hand accidentally gets between the magnet and the object of attraction at the moment of their collision, you can easily bruise your fingers, crush your hands and even break a few bones.
Therefore, be extremely careful when handling neodymium magnets and never let small children play with them . Always wear safety glasses when working with magnets.
Keep magnets a safe distance from any magnetic storage devices, such as desktop and laptop computers, hard drives, floppy disks, audio cassettes, video cassettes, and credit cards. It is recommended to maintain a distance of at least one meter between magnets and these objects.
If a child swallows small magnets (they come in different sizes), they can bond with each other inside the digestive system, blocking it from working properly, and can even cause death. Therefore, it is best not to allow children to play with magnets at all, or to allow them to do so only under the strict supervision of adults.
In this video, the expert clearly demonstrates what will happen to a hand if it gets caught between two neodymium magnets :
Neodymium magnets lose their attractive force very slowly. At room temperature, they lose no more than 2% of their magnetization in 10 years. But at the same time, they can be quickly demagnetized if heated above the Curie temperature for each class of neodymium magnets. For the simplest magnets this temperature is only 80°C. In this case, the neodymium magnet will completely lose its magnetic properties.
Where are neodymium magnets used?
When purchasing neodymium magnets, always pay attention to their attractive force. Buy a magnet with an induction of 12500 gauss or higher and do not be fooled by inexpensive offers so as not to be deceived. Nowadays, neodymium magnets are available in any size and shape; buying them is not a problem at all. Particularly popular are magnets in the form of a round platform (washer) with a hook.
Such a neodymium magnet can be used for various purposes: for example, to attach it to walls and hang various objects on a hook, or to tie a rope to a magnet using the hook and use it to retrieve metal objects from wells, various reservoirs, or even from a cesspool.
The magnet's attractive force is so powerful that it will attract all lost metal objects even in a heterogeneous, dense environment.
A good confirmation of these words is the use of powerful magnets in agriculture. A neodymium magnet, tied on a rope to a tractor plow, when cultivating a field, will collect all metal objects from the top layer of the earth - lost parts of agricultural equipment, nails, nuts, chains and the like.
Neodymium magnets are also used in computer hard drives and DVD drives. They are used for the manufacture of powerful acoustics with high speaker volume, as well as in ordinary headphones, mobile phones, smartphones, tablets and the like.
Powerful neodymium supermagnets are widely used by oil workers to extract metal shavings from petroleum products. In medicine, neodymium magnets are used in magnetic resonance imaging machines.
Neodymium supermagnets
These are incredibly powerful and extremely dangerous Ni-Cu-Ni magnets of class N45 and higher with a magnetic induction of 12500 Gauss, which are sold only to adults, and, as a rule, an adult’s signature is required upon delivery of the magnet to the buyer.
Imagine: a small magnet that fits in the palm of your hand can hold over 360 kilograms of weight! They are used for magnetic control of elementary particles in accelerators, the manufacture of levitating devices, magnetic amplifiers of electrical signals, industrial ferrous metal scrap separators, and so on.
In domestic conditions, neodymium supermagnets affect all sensitive devices inside the room (for example, radios, televisions or CRT monitors). In this case, loose metal objects and other magnets can be carried through the air and fly at high speed to attach themselves to powerful supermagnets.
And if the opposing poles fly towards each other and a person accidentally ends up between them, then he can be seriously injured or killed. At the moment of collision with a person, the magnets will simply crush his bones, crush his fingers and break his ribs or arm in the blink of an eye.
Just recently, a sad story happened: a small child lost his hand when his father left two supermagnets unattended.
The child simply took one magnet in his hand, and when he passed by another magnet, which was lying on a nearby table, it flew through the air and crushed the child’s small hand with a strong blow. Therefore the conclusion is:
NEVER ALLOW CHILDREN TO PLAY WITH NEODYMIUM MAGNETS!
Interesting fact #1: neodymium supermagnets are transported only by land. They cannot be sent by air because they will interfere with the aircraft's navigation equipment. All supermagnets are packaged either in small wooden boxes or with large polystyrene foam blocks/panels in double-walled cardboard boxes to minimize exposure to magnetic fields during transport.
Interesting fact No. 2: 50,000 - 80,000 tons of neodymium magnets are officially produced in China every year! China mines more than 95% of rare earth elements and produces about 76% of the world's total rare earth magnets.
Reference:
Gauss (G) or Tesla (T) is a unit of measurement of magnetic field induction, equal to the induction of such a uniform magnetic field in which a force of 1 newton acts on 1 meter of the length of a straight conductor perpendicular to the magnetic induction vector with a current of 1 ampere.
The Curie temperature is the temperature of a second-order phase transition, at which an abrupt change in the properties of a substance occurs. At the Curie temperature, a phase transition occurs from a ferromagnet to a paramagnetic or between the polar and nonpolar phases of a ferroelectric.
Source: https://neodimtve.ru/page/%D0%B8%D0%BD%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%86%D0%B8%D1 %8F
What metals does a neodymium magnet attract - Metalist's Guide
Searching for coins and treasures with a “search magnet” in water (river, well, lake, etc.) and in the ground (attic backfill, beaches) is gaining great popularity. Why ?
In this article I will tell you: which coins can be magnetic and which cannot? what types of magnets are there? how to search with a search magnet? What can you find with a magnet, and in what places can you find something worth 100%?
Anyone who has decided to sell the found ferrous metal is advised to read our article.
What metals does the “search magnet” attract?
A search magnet will not attract precious and non-ferrous metals in their pure form (gold, silver, copper, aluminum), since they are not “ferromagnetic”. A magnet can attract: iron, cast iron, steel, nickel.
For those who are going to use a “search magnet” to look for coins and treasures, as a consolation (to add optimism, so to speak), I want to say that: firstly, the coins may be in an iron case-box (according to statistics, all the treasures found were located there), secondly where have you seen coins made from the same metal?
In many cases, this is an alloy of ferrous metal with non-ferrous metal (the photo is one hundred percent proof of this, coins on a magnet, most likely a copper-nickel alloy, it’s hard to see, but I think Tsarist Russia).
Precious metals are a different matter, and gold and silver are fused reluctantly, one might even say not at all.
Modern coins, some Soviet coins (mainly 1, 2, 3 and 5 kopecks), and some Tsarist coins are especially well magnetized.
The magnetic properties of a coin are higher, the more iron or other ferromagnetic is in the copper alloy (well, at least 1.0 - 2%).
As for the magnetic Royal coins, I recently read a small article about this (I don’t remember where), that at the Yekaterinburg Mint at one time a lot of copper magnetic coins were minted.
The reason for this was that copper with a high iron content was mined at one of the mines, so coins made from this ore are fully attracted by a magnet.
It is also known that some coins of Anna Ioannovna, and coins of 1 and 2 kopecks from 1811-1843 are magnetic, and the latter are generally a ternary alloy (copper-nickel-zinc).
I advise you to have a very strong magnet (preferably made of non-bium) to search for coins.
What types of search magnets are there? Where can I buy them?
Search magnets have different weight holding strengths: 200, 300, 400, 600, or 1600 kg. Magnets can also be single-sided or double-sided. The second option is preferable, since the metal attraction area is available on both sides.
You can buy a magnet in an online search equipment store, for example, double-sided with a force of 120 kg, it costs only 1.5 thousand rubles, for a magnet with a force of 600 kg, you will have to “fork out” 5,800 rubles.
The only obstacle to purchasing a search magnet is delivery (after all, under the conditions of delivery by Russian Post, it is strictly forbidden to send magnetic materials).
A search magnet consists of three parts: a body, a magnet, and a bolt-loop (a cable or rope is attached to it).
Safety precautions when working with a magnet are very important: do not insert any parts of your body between the magnet and the metal, as you can be seriously injured (in some cases, even fractures); when transporting, make sure that it does not come into contact with metal parts of the machine, do not heat the magnet, as at temperatures above 80 degrees Celsius, it can demagnetize; after use, wipe it with a dry cloth to avoid corrosion.
Where to look to find something “worthwhile”?
You can search with a magnet: in natural reservoirs, wells, swamps, on sandy beaches, in powder in the attic.
There can be a lot of metal finds on the beaches: modern small change (modern 10 rubles are especially well magnetized), keys, corks, etc.
When searching in the attic, we advise you to comb the area first with a magnet so as not to rush into hundreds of metal detector signals; there are a lot of metal objects there.
In order to optimally search for valuables in the water, you need to take the choice of “fishing” place very seriously. My advice to you is to look for the place of an ancient beach, or a place where, according to the stories of the guards, people took water, washed, and swam.
Usually there is sandy soil, a convenient descent, and a flat shore area.
Also, don’t forget the tradition of throwing coins into the sea on vacation so that you can come back again, or into the river “for good luck.”
Take old maps and overlay them on modern ones (I tell you how to overlay them here), look for ancient flooded villages, buy a magnet and a boat, and go ahead to search for valuables.
By the way, if you sell scrap metal along the way, you will always be in the black.
Finds in the water will be the following: nails, irons, knives, coins, rings, shovels, axes, fish hooks and other metal objects.
Yes, move electronic devices away from the magnet, as it can strongly influence them with its magnetic field.
Good luck with your “catch”. Read our blog
Source: https://ssk2121.com/kakie-metally-prityagivaet-neodimovyy-magnit/
Which search magnet is better to buy?
Neodymium search magnets today are actively used by treasure hunters who are looking for valuable things. Depending on the type and type, the device can have different holding weights and can be used to search for small elements or large catches.
Most often it is needed to work in places where using a metal detector is difficult or even impossible. Can also be used together.
To get the maximum result from its use, it is important to first choose the right search magnet and then use it.
First of all, decide under what conditions and for what purposes the device will be used. As a rule, these are dried up wells or lakes or rivers. Powerful search magnets are best suited for this. The more powerful it is, the heavier objects it can withstand and the greater the chance that it will be magnetized to the find.
However, there are also disadvantages of very strong magnets: they are more dangerous and more difficult to tear off. The best option for searching at depth is considered to be models with a pull-off force of 400–600 kg. At the same time, you should be very careful when purchasing; sellers often significantly exaggerate the power of the magnets.
It is recommended to buy from well-known and trusted sellers, such as, for example, the “World of Magnets” search magnet store. Otherwise, you can easily get the wrong adhesion force for which you expected, for example, instead of 400 you get 300 kg.
Unfortunately, it is very difficult to prove that the magnet was of inadequate power immediately upon purchase, since it can be demagnetized if handled incorrectly.
The use of double-sided search magnets also significantly increases the chances of magnetization reversal to a find. They are recommended for use in rivers and lakes. With such a device, you will not miss a find because the magnet “looked” in the other direction.
For use with a metal detector, weaker one-sided models are most often suitable. They will be easier to use and their strength is usually enough to check a cop.
To use a search magnet correctly, you need to understand the characteristics of the materials from which it is made.
An alloy of neodymium, boron and iron can withstand a hundred times its own weight. Using the magnet is extremely simple. It is enough to bring the device close to a metal object, and it will work immediately. Depending on the area, finds can be valuable, large, and sometimes dangerous.
Rope
Decide under what conditions the device will be used. As a rule, these are dried up wells or lakes or rivers. First you need to pick up a special rope. When choosing, look at the breaking strength. This characteristic shows how much weight the cable is designed for.
The breaking force of the rope must be at least equal to or greater than the power of the magnet. For example, for a device with a nominal force of 200 kg, a cable with a similar weight limit is suitable. You can and even need to take more in some cases.
If you plan to use a pole, then its weight should be added to the rated strength of the magnet. Also, finds will often have to be pulled out of silt, algae or sand. Water creates stress on the object, so a thick rope is definitely needed.
It is recommended to take with reserve.
For searching at the bottom of reservoirs there are rubberized cables that do not deteriorate from the influence of a humid environment.
Pole
A separate interesting device that will be useful to treasure hunters operating in swampy areas. The magnet itself is lightweight, so it does not penetrate dense silt. The magnet is attached to the end of the pole, then lowered deeper. This way you can find ancient treasures hidden at the very bottom.
Rules for working with a magnet
When working with a magnet, the following troubles may arise:
- rope break;
- slipping of the device from the smooth surface of a large object;
- loss of the device itself due to unreliable fastening.
To ensure safe, high-quality and successful searches, it is necessary to pay attention to all these points and take measures to eliminate them. It is important not only to choose a rope, but also to secure the device correctly and use the correct casting technique.
Ways to bind a search magnet
There are several effective knots that are often used to tie a magnet for searching: nautical, academic, surgical, constrictor. The first is the most popular, which is mainly used. The rest are often tied as additional ones, alternately, for greater strength. This way the magnet will never get lost.
Even this excellent device has its weaknesses. In total, such a magnet has 2 minuses. These shortcomings are easily solved, so they rarely become a reason to refuse a purchase.
- Heat. This alloy tolerates elevated temperatures extremely negatively. More than +80 is lethal for its unique properties. The most suitable mode varies from -50 to +50.
- High humidity. Most often, a magnet is used under water, in conditions of complete immersion. This does not affect the magnet itself, but at the same time the shell quickly corrodes. The problem can be solved by simply maintaining the device. After each use, you need to clean off any rust that has appeared and remove any remaining water. Do not store in a place with high humidity.
Basic Precautions
Be careful when handling neodymium search magnets. This is a powerful and serious device that disables equipment and causes injuries in a couple of seconds. The magnetic field easily deletes information from bank cards, hard drives, and breaks pacemakers.
Be sure to use additional hand protection. Since the devices develop a large magnetizing force, your hands may suffer. The two search engines have double the strength and easily crush the fingers between them.
Magnets can stick to metal items at high speeds, even through a pocket. If you carry it in your hands by the ring and walk past a metal structure, you can easily get a fracture of the phalanx.
The magnets are incredibly fragile, although they have a high power rating. If dropped or suddenly released for gluing, it may simply crack and lose its properties.
Use in difficult conditions
The most valuable and interesting finds are hidden in places inaccessible to humans. Search magnets are designed for use precisely in those places where a metal detector cannot reach. The magnet is lowered to a depth on a special rope. To do this, it is most practical to use a double-sided device with side mounting. It is thrown into the water like a drag, from a boat or from the shore.
The magnet works best at a distance of no more than 10 cm. This way, even the largest elements will be captured.
On sand or land, the catch literally flies out on its own. Underwater, among the silt, it will be a little more difficult. Therefore, you need to bring it closer and pull harder. If an object is stuck in the ground, it must be dug out manually. Large items are retrieved using a special automated winch. Coins, keys, badges, weapons are quite easy to pick up, it does not require special skills.
Features of transportation and storage
A strong magnetic field damages equipment and electronics. To minimize the possibility of damage, follow safety precautions during storage and transportation.
Source: http://3Monety.ru/blog/kakoj-poiskovyj-magnit-luchshe-pokupat/
Pros and cons of neodymium magnet 50x20 mm
The 50x20 cylindrical neodymium magnet is one of the most popular magnets today. This is due to its convenient overall dimensions, low weight of 294 grams and fairly high adhesion force, which is 89 kilograms.
Such magnets are used for a variety of purposes; they can be used to lift and hold various metal objects, remove shavings and debris, construct various mechanisms, and make unique magnetic toys and souvenirs.
If you are thinking about purchasing a neodymium magnet, then you need to know about its advantages and disadvantages so that you can make the most informed decision.
Features of neodymium magnets
The main advantages of neodymium magnetic disks 50x20 include the following:
- Compact size and light weight;
- Convenient shape;
- High magnetic field strength;
- Resistance to demagnetization (loss of magnetization 1-2% over 10 years);
- Resistance to corrosion;
- Incredibly wide scope of application;
- Environmentally friendly;
- Can be used to magnetize metal tools and other magnets;
- Safe for people (subject to compliance with safety regulations).
The disadvantages of neodymium magnets include their higher cost compared to ferrite magnets. These are also quite fragile products, and if handled ineptly or carelessly, they can break into many sharp fragments.
Handling a neodymium magnet requires knowledge of safety regulations; two magnets attract each other with enormous force and can easily pinch a finger or skin, which can cause quite serious injury. A magnet left in a pocket can stick to any metal surface and damage clothing.
Also, such magnets negatively affect the operation of electronic devices, as a result of which they are highly not recommended for people with pacemakers or other electronic implants. It is also worth noting that neodymium magnets, when heated above the permissible temperature, begin to demagnetize very quickly.
Neodymium magnet 50x20 in the online store
The Homemagnit.com online store offers for sale a wide range of neodymium magnets, including 50x20 neodymium disks. The magnets presented in our assortment are made of high-quality neodymium-iron-boron alloy brand N42, retain their magnetic properties in a temperature range of up to 80 degrees. You can make a purchase from the catalog or by phone. You should contact us for several reasons:
- Lowest prices for neodymium magnets;
- High quality guaranteed;
- Prompt delivery throughout Russia.
Source: https://homemagnit.com/articles-about-magnets/plyusy-i-minusy-neodimovogo-magnita-50x20/
