How to remove a search magnet

Search magnet, why does a search engine need it and how to choose a search magnet?

You've probably already noticed that a mysterious group of products has appeared in the assortment of stores for search engines. There are very few products in this group and they are all called Search Magnets. Let's figure out together why a search magnet is needed.

Why are search magnets needed?

First of all, a search magnet is designed to search places hidden from conventional search methods. For example, using a search magnet you can search the bottom of a well, pond or small river. It is enough to tie a strong rope or cable to a search magnet and lower it into the magnet at the bottom of a reservoir or well.

If there are objects made of iron, nickel and other magnetic materials at the bottom, then the search magnet will be magnetized to them and they can be easily retrieved without plunging into the water.

But what interesting things could be hidden in a village well or the bottom of a river in the area of ​​the crossing? Very interesting household items, as well as things that they tried to hide more reliably, for example, weapons hidden by deserters, partisans and other individuals with a darker past.

Another area of ​​application for search magnets is clearing the intended search site of iron debris. It is enough to drag a search magnet along the surface of the earth so that it collects from the surface all the nails, pieces of steel wire, steel plugs and other search debris that litter fields, abandoned houses and settlements.

A search magnet can also be used when searching with a metal detector. If the metal detector signal disappears after you have dug a small hole, then a search detector will help you quickly find iron “garbage” in the screening or in the hole. What should you know when choosing a search magnet? The most important characteristic of a search magnet is its magnetic strength.

In order to make the value of the magnetic force more clear to the buyer, it is expressed in kilograms. Search magnets have a magnetic force of 60 to 600 kilograms. The most popular magnets among search enthusiasts are magnets for 200, 300 kilograms; they have a reasonable price and are easy to use. More powerful magnets of 500 kilograms or more are in less demand.

It seems that you can get half a ton from the bottom of the river. But such powerful magnets are needed for more precise fixation to thin metal with curves or to small metal surfaces. For the accuracy of the description, it is worth adding that testing and determining the magnetic strength of the search magnet takes place on a clean milled steel sheet 8-10 mm thick.

Therefore, a search magnet must be purchased with a reserve.

When choosing a search magnet, you need to choose a magnet that has a device for removing the magnet from the piece of metal on which it is magnetized. Otherwise, removing the magnet from the metal will take much longer than the search itself.

Most often, the device for removing a magnet from metal is an eye bolt. An eye bolt performs two roles at once - a convenient place for attaching a rope or cable and a simple device for removing a magnet from metal.

It is enough to screw the eye bolt all the way into the body of the search magnet and it can be easily removed from the found metal.

Search magnets come in single- and double-sided types. Double-sided magnets are more convenient and more efficient, due to the fact that they can be magnetized to the “target” by two sides, rather than one.

Selecting accompanying equipment for working with a search magnet

If you are going to use a search magnet to search at the bottom of reservoirs or wells, as well as to lift finds to the surface, then you will have to additionally purchase a strong rope and a winch for the magnet! Yes, a winch! How are you going to get your magnet out of the bottom of the swamp if it gets caught on a sunken tank? Of course, none of the search magnets will pull out a tank; it’s like dragging a “hippopotamus out of a swamp.” But you also can’t leave the magnet at the bottom because the rope breaks. Therefore, if you purchased a 200 kilogram magnet, then it is advisable to use it with a 250-500 kilogram rope and a similar winch. And of course, don’t forget to take with you a key or a strong wrench for screwing in the eye bolt, otherwise you risk returning home with a magnetized anvil

source

Source: http://sevgps.com/informatsiia/stati/poiskovyi-magnit-zachem-on-nuzhen-poiskoviku-i-kak-zhe-vybrat-poiskovyi-magnit

Search magnets for gold and silver: operating principle, review of models and prices

Treasures, treasures, hiding places, jewelry These words reek of adventure, adventurism, and romance.

Who didn't dream of finding treasures as a child?

Some adults have kept their childhood dreams and are making them come true by engaging in treasure hunting.

Like all passionate people, amateur search engines have their own clubs and communities. There they exchange experiences, discuss search devices, and make collective forays.

Modern devices for detecting metals help treasure hunters. One such device is a search magnet. More about it below.

Design and types

A search magnet is capable of finding, capturing and lifting metal objects whose weight is much greater than the device itself by 50-100 times. The device is otherwise called an eternal or powerful magnet.

The working fluid consists of a neodymium magnet (contains Nd-Fe-B) enclosed in a glass-shaped turned steel body.

The body is coated with zinc, and the body is coated with nickel, which allows to be used for searching in water .

The housing protects and shapes the magnetic field in the correct direction. There are:

1. Single-sided - convenient for searching from a boat, pier, bridge.
2. Double-sided - have a universal purpose.
3. Trawls are good for examining the bottom of reservoirs.
4. Rods – for narrow and hard-to-reach places for conventional magnets.

They also differ in body diameter and magnetic strength .

A special bolt (eye bolt) is screwed into the top or side, intended for a cable or rope.

The second function of the bolt is that it is used to remove an object from a magnet.

To do this, the eye bolt is screwed completely into the body, after which the magnetized object can be removed.

Search magnets are most afraid of high temperatures (above +80); when exposed to strong heat, they lose their functions .

It is easy to work with: having attached it to a rope or cable, it is simply lowered into the desired place.

Objects containing ferromagnetic metals will be attracted to the device. Together with a magnet, they can be removed to the surface.

The fundamental difference is that a metal detector can only indicate the location of an object, while a magnet allows you to immediately “get” it. However, a magnet will not help when searching in the ground . Therefore, these two devices in the seeker’s arsenal are designed to complement each other, but not replace each other.

Other distinctive features:

• the magnet retains its functions in an aqueous environment ;
• no need to buy batteries or accumulators ;
• absence of sound signals that attract attention or “declassify” the seeker;
• do not take up much space, easy to take with you;
• objects are attracted on their own ;
• affordable price;
• resistant to damage;
• long service life, provided that the operating rules are followed - they lose one percent of their strength in a hundred years .

Where can it be used?

Used to search for objects outside the field of view :

• in caves;
• mountain failures;
• wells;
• sewers;
• bodies of water;
• swamps.

A magnet will be a good help during archaeological excavations and searches for wartime items.

Usually used in tandem with a metal detector. Using a magnet, excess, unnecessary metal is collected, but which will be “distracted” when searching with a metal detector. The metal detector then searches for more valuable alloys such as gold and silver.

Objects that are made of metals that have ferromagnetic properties can be attracted by such a magnet. For example, cast iron or nickel.

Ferromagnetic properties are properties of base metals that allow them to “stick” to magnets with great force.

The burning question is, is it possible to lift objects made of precious metals using a magnet?

It is possible if the composition contains metals that react to magnetic attraction.

There is no special search magnet for gold and silver .

However, it is quite possible to obtain jewelry and coins made of precious alloys with its help, because they also contain other elements that the magnet will attract.

For example: 585 standard gold consists of 58.5 percent of gold. The remaining 41.5 percent comes from other metals, including nickel.

Nickel is easily attracted to a magnet. However, in order for such jewelry to be lifted, there must be a touch to the jewelry find.

It's the same story with silver. If the alloy has ligatures (metals added to jewelry to increase wear resistance), objects or jewelry will be attracted.

Review of popular devices and their prices

China is considered the leader in production . Approximately 130 enterprises in China produce neodymium magnets.

These products are manufactured in Russia

• scientific and production company "Supersistema", Moscow;
• ZAO NPO REDMAG, Kaluga;
• LLC "Plastic" in St. Petersburg;
• LLC "Research and Production Company "Magnites and Systems", St. Petersburg;
• Nepra company, Moscow region, Zheleznodorozhny;
• NPO "ERGA" in Kaluga.

Name	Diameter, mm	Height, mm	Breakout force, kg	price, rub.
Research and production company "Supersystem"
F80 (single sided)	48	10	80-90	690
F150 (single-sided)	68	15	170-190	1190
F600 (single-sided)	130	24	660-690	4290
Double sided F150x2	68	24	170-190 on each side	1940
Double sided F600x2	130	39	660-690 each side	7290
JSC NPO REDMAG
F300	94	28	600	3050
F600	136	25	600	5450
Made in China (according to information from the Polyus-magnet online store)
F300	94	28	300	2750
F400	116	20	400	3200
F600	136	25	600	4900

As in any serious matter, caution is important :

1. Ask the people you are going on search trips with to see if they have pacemakers . The device can disrupt the normal operation of the pacemaker.
2. Credit cards with a magnetic stripe, mechanical watches, hearing aids and telephones should be kept away from the magnetic device.

Easy to use and maintain, affordable, these devices can help with:

• searching for gold and other precious metals;
• when digging non-ferrous metal and ferrous metal.

There are practically no restrictions on the place of application. At the same time, they are durable and do not lose their properties.

If the operating rules are followed, search magnets will help in searches for a long time.

Source: https://rcycle.net/metally/dragotsennye/poiskovye-magnity-na-zoloto-i-serebro

Where to get a neodymium magnet

What is a neodymium magnet? This is a high-tech development of modern scientists. More than 20 years of hard scientific and practical work were spent on obtaining such magnets. As a result, a magnet was obtained that surpasses all other known magnets in its characteristics.

It is made using rare earth alloys, so interest in such materials has always been and remains high. The task for the scientist and experts was to create a powerful and strong magnet, which at the same time retains its basic physical properties for a long time.

These are the properties that a neodymium magnet has, the strength of which has not weakened for many decades, and its scope of application is quite wide. Their use is described here.  

Is it possible to create a neodymium magnet yourself?

Many have wondered about creating such a magnet at home, but, unfortunately, it will not be possible to create such a device at home. The most advanced technologies, equipment and tools are used to produce such magnets. Therefore, it will definitely not be possible to create such a device without special tools.

The magnet itself is made in an interesting way, the material for manufacturing is crushed, then sintered in special furnaces and then it is given the power of a magnet. Therefore, it will not be possible to repeat this at home.

But many people don’t even realize that neodymium magnets are found in household devices and various appliances, and after the device fails, the magnet can be removed and used for various purposes.

Neodymium magnets in the house

So, where can you get a neodymium magnet at home? Many people don’t even realize that there are many places around us where you can find products made from this rare alloy. There are several places and devices where such magnets are most often used.

Hard disks . Hard drives can be identified as the first place among all devices where you can find such a magnet. Moreover, such a data storage device can be found in any home. Of course, no one will disassemble a work computer or laptop in order to remove a magnet from it.

In addition, a hard drive is a high-tech device that is quite difficult to open and disassemble. It is also worth noting that hard drives contain quite powerful magnets, which are not inferior in strength to those that can be bought in a specialized store.

Another important point is that modern hard drives have much weaker magnets due to new standards and manufacturing technologies, so it’s better to look for an old drive. 

Furniture latches . No one would probably have guessed that you could look for a powerful magnet in ordinary furniture latches that hold the door closed. But a neodymium magnet is very often located inside the latch.

This is due to the fact that the surface area of ​​the latch is relatively small, so ordinary magnets will not give the desired effect. Also, the latches themselves quite often break and after that you can disassemble them and remove the magnets, or from old furniture, which is often simply taken to a landfill.

But it is worth noting that the power of such magnets is low, so they are not suitable for all purposes.

Engines and generators . Quite often, powerful neodymium magnets can be found in modern electric motors. The power and size of the magnets in the motors are quite large. An important nuance is that the engine or generator itself should not be very old. Because the production of neodymium magnets began relatively recently. Therefore, they most likely will not be found in old Soviet engines.

Magnets on sale

In fact, magnets can be found in the most unpredictable places. These could be knife holders in the kitchen, wall clocks, various figurines, jewelry, and decorative items. In general, any objects that have magnetic properties can contain neodymium.

 The question is whether a magnet found at home in a household appliance or hard drive is suitable in terms of power and size. Also, industrial magnets are made with a thread or hole of the required shape and diameter.

If a neodymium magnet is needed for business, then it is better to think about buying a real large magnet.

   Electrical engineering

Source: https://elwo.ru/publ/ehlektrotekhnika/gde_vzjat_neodimovyj_magnit/27-1-0-855

How to use a Magnit card

Loyalty programs are an undoubted attribute of today's retail chains. The latter are interested not only in attracting a client, but also in retaining him for the maximum possible period of time using various marketing tools. One of these tools is bonus and discount cards, which allow you to receive discounts and accumulate bonuses with each purchase of a product.

Throughout 2019, the Magnit family of stores was actively involved in implementing a loyalty program in 65 constituent entities of the Russian Federation. The instrument of this program was a system that allows you to accumulate bonuses for purchases. And then use them to purchase new goods in stores of the same name. Below we will discuss how to use your bonus card from the Magnit retail chain.

Conditions for receiving and validity of Magnit card bonuses

The pilot implementation of Magnit loyalty cards was launched in the spring of 2019 in three regions - Kostroma, Yaroslavl and Chelyabinsk. Within a few months, the network issued more than one and a half million such cards, and the project was considered a success.

By the end of 2019, the Magnit loyalty program was extended to 65 constituent entities of the Russian Federation. And the number of cards issued exceeded several million.

More than 60% of goods sold were purchased with it, more than 20% of participants used the virtual card in the mobile application.

Results of the pilot program of the Magnit network

This bonus system of the Magnit retail chain allows you to accumulate bonus points after each purchase made. Each accumulated point is equal to 1 ruble. And with the points accumulated in this way, you can purchase the necessary goods in the family of these stores.

The Magnit family of stores includes thousands of stores throughout Russia

It earns you points in the amount of 0.5% of your purchase. Another 0.5% of the purchase amount is credited in the first thirty days after registration.

Bonus for purchases is 0.5%

You will also be credited with an additional 2.0% of the paid purchase amount if you purchased goods during the period from three days before your birthday to three days after it.

Another 2% can be accrued from the paid purchase of goods belonging to a certain category. They are credited to the bonus account within thirty days, after which they can be used.

Bonuses can also be awarded for participation in promotions and as part of personal offers.

Magnit bonus points are valid for one year from the date of accrual . After this period expires, they burn out.

After a year, bonus points expire

This is useful to know: how to determine whether the Magnit card is activated.

What are “Additional accrual levels”?

In addition to the conditions we have described, you can use additional levels of accruals within the Magnit loyalty program. Such accruals can be received the next month after the month in which you met a number of conditions.

Charges: Conditions:

1%	If you purchase goods in the Magnit network for an amount of 5 thousand rubles or more or purchase more than 50 different goods.
2%	If the amount of your purchases per month is more than 10 thousand rubles, or you purchase more than 100 different goods.

At the same time, goods in the form of toys, Promo figures, tobacco products, and promotional gifts are not included in the additional accrual levels.

Registration and activation of the Magnit card

The design of the Magnit card looks quite simple. You can purchase a card at the checkout of a retail chain store for 1 symbolic ruble, provided that you purchase goods worth 500 rubles or more. You can also simply buy a card at the checkout without any conditions, paying 25 rubles for it.

In addition, you can apply for a virtual Magnit card in the mobile application or on the network website. The retail cost of the card will not be charged.

The Magnit mobile application allows you to create a virtual card

After purchasing the card, you will need to activate it, since only after that you will be able to use the card from Magnit. The easiest way to activate the card is to send a free SMS to number 9002 in the following format:

The number of the card you have (without spaces) - SPACE - your name - SPACE - your date of birth (day - two digits, month - two digits, year of birth - four digits).

Example of an SMS message for Magnit card activation

After sending the message, you will receive a response SMS confirming the activation of the card.

You can also activate in the system in the Magnit mobile application (Android, iOS), in your personal account on the Magnit website, or by calling the toll-free hotline at 8 (800) 200-90-02.

You can activate your card on the website

Only one card can be linked to one mobile phone.

This will also be useful: how to activate a Magnit card using the card number.

How to use the Magnit bonus system

Accordingly, after registering and activating the card for a subsequent purchase in the Magnit retail chain, you can start using it. Just provide the seller with the money for the product you purchased and your bonus card. The receipt received during checkout will contain the points you received, as well as their total amount in your account.

You can also control the number of points you have using a mobile application or in your Personal Account on the website.

Conclusion

Above, we examined in detail what are the features of using a bonus card from the Magnit retail chain. Despite the rather late introduction of the loyalty card compared to its competitors, it has found millions of its active users. However, many clients are not happy with the system. It is quite difficult to activate, the system may calculate points incorrectly, and the support team is often helpless.

Source: https://sdelaicomp.ru/obzori/kak-polzovatsya-kartoj-magnit.html