Why is iron attracted to a magnet?

Treatment of the pancreas: The best herbs and recipes

Why is iron attracted to a magnet?

The pancreas performs important functions in the body. It regulates blood sugar. “Problems” in the functioning of this organ have a risk of developing diabetes. Unhealthy diets, addictions and other factors cause inflammation, intoxication and other problems.

The pancreas performs very important functions in the body. It regulates blood sugar. “Problems” in the functioning of this organ have a risk of developing diabetes mellitus. Unhealthy diet, addictions and other negative factors cause inflammation, intoxication and other problems of this delicate and small gland.

Pancreas condition

The most terrible disease that threatens the pancreas is cancer. Much more often, problems in the functioning of this organ relate to insulin.

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The pancreas synthesizes the mentioned hormone, which is important for the digestion and metabolism of carbohydrates. Plus, the organ synthesizes pancreatic juice, which is involved in the digestion of proteins and fats.

When using folk remedies in the treatment of the pancreas, it is important not to forget that progress is achieved with strict adherence to the rules and instructions. During an exacerbation, doctors recommend following the following regimen:

  • In case of acute pain, avoid eating for two to three days in order to avoid subsequent irritation of the pancreas.
  • If the condition worsens significantly, strict bed rest must be observed.
  • If you experience severe pain or rapid deterioration, you should immediately call an ambulance. Pancreatic tissue may undergo necrosis, followed by infection of the abdominal cavity and peritonitis progressing, and this is extremely dangerous.
  • Folk remedies can be used in the treatment of pancreatitis only after proper relief of the acute phase.

When using a traditional method of therapy, it should be remembered that significant progress is achieved after a number of courses, for this reason it is not advisable to change one method to another. Traditional therapy in combination with proper nutrition will enhance the positive result.

What plants and products will help improve the health of the pancreas and improve the condition of pancreatitis:

  • Sophora japonica demonstrates an analgesic effect for pancreatitis. How to prepare the decoction: 1 tbsp. Place a spoonful of herbs in a thermos, pour a glass of boiling water, leave for several hours and drink warm in a small volume before meals or several times throughout the day. Sophora should not be used for more than 10 days; after the course, you need to take a break of several weeks and repeat the course again.
  • Blueberry berries and leaves (brewed) minimize tissue irritation. Drink the drink like tea.
  • Inflammation of the pancreas is relieved by immortelle decoction. How to prepare a decoction: brew the herb (1 spoon) with 250 ml of boiling water, infuse and divide into 3 doses per day. You can add the same amount of chamomile flowers to this herb, which have antimicrobial and anti-inflammatory effects. A collection of immortelle and chamomile should be consumed for 2 weeks.
  • Oat decoction restores pancreatic cells, relieves irritation and removes toxins. How to prepare the decoction: soak clean oat grains and leave them to germinate in a warm place. When sprouts emerge, wash the oats, dry them and grind them to the consistency of flour. Dilute the mixture with cold water, brew with boiling water and leave to steep for 30 minutes. Drink the drink without straining. 2 glasses per day are enough.

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  • Lemon therapy on the pancreas minimizes soreness and minimizes irritation. Recipe: Boil 1 lemon in water for 5 minutes, then squeeze out the juice and mix with raw egg yolk (preferably use a homemade egg). Drink the mixture on an empty stomach and refrain from eating for the next 3 hours. Lemon should be used 5 times - on the first day, then on days 3 and 6, a new portion of the mixture is consumed on days 12 and 24 from the start of therapy. Repeat the course after 6 months.
  • Buckwheat and kefir will cleanse the pancreas and the digestive tract itself. How to prepare the composition: grind 1 kg of dry buckwheat to the consistency of flour. Every day before going to bed 1 tbsp. A spoonful of the resulting flour should be poured with a cup of kefir and left overnight to swell. In the morning, eat the prepared mixture on an empty stomach. Buckwheat and kefir enrich the body with minerals and remove toxins, while restoring peristalsis.
  • Wormwood activates the secretion of bile and pancreatic juice. How to prepare the decoction: 1 tbsp. spoon of dry herb, pour boiling water, keep on fire for 5 minutes, leave for 30 minutes. Drink the decoction 20 minutes before. before meals, 1-2 spoons.
  • Licorice root will help synthesize pancreatic enzymes. How to prepare a decoction: 5 g of dried and crushed licorice roots, 5 g of dry burdock herb, 5 g of dandelion, pour boiling water, leave, strain and drink hot, half a glass 3 - 4 times a day.

Other herbs and their effects on pancreatic health

  • Infusion of plantain and licorice . Simply brew licorice root and plantain leaf with hot water. The benefit of the drink is this: licorice root contains a compound that controls the production of glucose. Licorice relieves inflammation. Plantain has bactericidal and anti-inflammatory properties. In combination, these two plants prevent conditions that precede the onset of diabetes (insulin resistance).
  • An infusion of rosemary and sage helps cleanse the pancreas, relaxes muscles, and improves sleep. Rosemary relieves inflammation and helps eliminate toxins. Sage has a similar effect. It is recommended to drink tea from these herbs after dinner, once a day. Recipe: take 1 sprig of rosemary, 5 sage leaves. Pour boiling water over everything and leave for 5 minutes.
  • Milk thistle tea. This plant includes a complex of biologically active compounds silymarin. This is a strong flavonoid that is used in the treatment and restoration of the liver and pancreas. Therefore, milk thistle is used as a hepatoprotector and antioxidant. Recipe for making tea: 1 teaspoon of plant seeds is poured into a glass of boiling water. Infuse and drink after meals.
  • St. John's wort, peppermint, motherwort. Cooking recipe: take the indicated herbs in equal proportions - 1.5-2 tbsp. l. Pour 0.5 liters of boiling water and place in a steam bath for half an hour. Strain, cool. Take 170 ml three times a day before meals.
  • Yarrow, chamomile, calendula collection. Recipe: mix 1.5 tbsp. l. the indicated herbs. Pour 0.5 liters of boiling water. Place in a steam bath for half an hour and leave. Take 100 ml 5 times a day, half an hour before meals.
  • Immortelle, chamomile, wormwood. Cooking recipe: Mix 5 tbsp. spoons of immortelle, 3 tbsp. spoons of chamomile and 2 tbsp. spoons of wormwood. Pour 0.5 liters of boiling water and leave for 50 minutes. Take 4 times a day for 40 minutes. before or after a meal.
  • Plantain, calendula and tansy. Cooking recipe: Pour 1 tbsp. spoon of herbs 250 ml of boiling water. Leave for 1.5-2 hours. Take 50 ml throughout the day before meals. Drink in small sips.
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All of the listed plants, foods and drinks help normalize the functions of the pancreas. You should treat the pancreas with care, do not overload it with vicious nutrition and take preventive measures against its dysfunction, even if it does not bother you. And if you have problems with the pancreas, folk recipes will be of great benefit. *published by econet.ru.

*Ekonet.ru articles are intended for informational and educational purposes only and do not replace professional medical advice, diagnosis or treatment. Always consult your physician with any questions you may have about a medical condition.

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Source: https://econet.ru/articles/lechenie-podzheludochnoy-zhelezy-luchshie-travy-i-retsepty

Why is copper not magnetic?

Why is iron attracted to a magnet?

February 24, 2015.

In the magnetic circuits of various electrical machines, transformers, instruments and apparatus of electrical engineering, radio engineering and other branches of technology, a variety of magnetic and non-magnetic materials are found.

The magnetic properties of materials are characterized by the values ​​of magnetic field strength, magnetic flux, magnetic induction and magnetic permeability.

The relationship between magnetic induction and magnetic field strength, expressed graphically, forms a curve called a hysteresis loop. Using this curve, you can obtain a series of data characterizing the magnetic properties of the material.

An alternating magnetic field causes the appearance of eddy currents in magnetic materials. These currents heat the cores (magnetic cores), which leads to the consumption of some power.

To characterize a material operating in an alternating magnetic field, the total value of power expended on hysteresis and eddy currents at a frequency of 50 Hz is referred to 1 kg of material weight. This value is called specific losses and is expressed in W/kg.

The magnetic induction of a particular magnetic material should not exceed a certain maximum value, depending on the type and quality of the material. Attempts to increase induction lead to increased energy losses in a given material and its heating.

Magnetic materials are classified as soft magnetic and hard magnetic.

Magnetic soft materials

Soft magnetic materials must meet the following requirements:

  1. have a large relative magnetic permeability µ, which makes it possible to obtain a large magnetic induction B with the smallest possible number of ampere-turns;
  2. have the lowest possible losses due to hysteresis and eddy currents;
  3. have stable magnetic properties.

Soft magnetic materials are used as magnetic cores of electrical machines, transformer cores, chokes, relay electromagnets, electrical measuring instruments, and the like. Let's look at some soft magnetic materials.

Electrical hardware

obtained by electrolysis of sulphide or ferric chloride, followed by melting in vacuum of the electrolysis products.

Powdered electrolytic iron is used for the production of magnetic parts, similar to the production of ceramics or plastics.

Carbonyl iron

obtained in the form of a powder as a result of the thermal decomposition of a substance that includes iron, carbon and oxygen [Fe(CO)5].

At a temperature of 1200 °C, carbonyl iron powder is sintered and used to manufacture the same parts that are made from electrolytic iron.

Carbonyl iron is characterized by high purity and ductility; used in the electrovacuum industry, as well as in instrument making for the manufacture of laboratory instruments and instruments.

The two types of highly pure iron we considered (electrolytic and carbonyl) contain no more than 0.05% impurities.

Electrical steel sheets

is the most common material in electrical engineering and transformer manufacturing.

Electrical steel is alloyed with silicon to improve its magnetic properties and reduce hysteresis losses.

In addition, as a result of the introduction of silicon into the steel composition, its resistivity increases, which leads to a decrease in eddy current losses.

Sheet thickness depending on the steel grade is 0.3 and 0.5 mm.

Electrical steel, cold rolled and then annealed in a hydrogen atmosphere, has particularly high magnetic properties.

This is explained by the fact that the metal crystals are located parallel to the rolling direction. This steel is designated by the letters KhVP (cold-rolled high permeability, textured).

Steel sheets have dimensions from 1000 × 700 to 2000 × 1000 mm.

The grades of electrical steel used to be designated, for example, as follows: E3A, E1AB, E4AA.

The letter E means electrical steel; letter A – reduced power losses in an alternating magnetic field; letters AA - especially low losses; letter B – increased magnetic induction; numbers 1 – 4 show the amount of silicon contained in steel as a percentage.

According to GOST 802-54, new designations for electrical steel grades have been introduced, for example: E11, E21, E320, E370, E43.

Here the letter E stands for electrical steel; first numbers: 1 – lightly doped with silicon; 2 – medium doped with silicon; 3 – highly alloyed with silicon and 4 – highly alloyed with silicon.

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The second digits in the designation of grades indicate the following guaranteed magnetic and electrical properties of steels: 1, 2, 3 – specific losses during magnetization reversal of steels at a frequency of 50 Hz and magnetic induction in strong fields; 4 – specific losses during magnetization reversal of steels at a frequency of 400 Hz and magnetic induction in average fields; 5, 6 – magnetic permeability in weak fields (H less than 0.01 A/cm); 7, 8 – magnetic permeability in medium fields (H from 0.1 to 1 A/cm). The third digit 0 indicates that the steel is cold-rolled, textured.

Permalloy

an alloy of iron and nickel. Approximate composition of permalloy: 30–80% nickel, 10–18% iron, the rest copper, molybdenum, manganese, chromium. Permalloy is easily processed and is available in sheet form.

It has very high magnetic permeability in weak magnetic fields (up to 200,000 H/cm).

Permalloy is used for the manufacture of telephone and radio communication parts, transformer cores, inductors, relays, and parts of electrical measuring instruments.

Alsifer

an alloy of aluminum, silicon and iron. The approximate composition of alsifer is: 9.5% silicon, 5.6% aluminum, the rest is iron. Alsifer is a hard and brittle alloy, so it is difficult to process.

The advantages of alsifer are high magnetic permeability in weak magnetic fields (up to 110,000 H/cm), high resistivity (ρ = 0.81 Ohm × mm²/m), and the absence of scarce metals in its composition.

Used for the manufacture of cores operating in high-frequency installations.

Permendur

an alloy of iron with cobalt and vanadium (50% cobalt, 1.8% vanadium, the rest iron).

Permendur is available in the form of sheets, strips and tapes.

It is used for the manufacture of electromagnet cores, dynamic loudspeakers, membranes, telephones, oscilloscopes and the like.

Magnetodielectrics

These are magnetically soft materials, crushed into small grains (powder), which are isolated from one another by resins or other binders.

Electrical iron, carbonyl iron, permalloy, alsifer, magnetite (feO Fe2O3 mineral) are used as magnetic material powder.

Insulating binders are: shellac, phenol-formaldehyde resins, polystyrene, liquid glass and others.

The granular structure of magnetodielectric materials causes low losses due to eddy currents when these materials operate in magnetic fields of high-frequency currents.

Hard magnetic materials

Hard magnetic materials are used to make permanent magnets. These materials must meet the following requirements:

  1. have a large residual induction;
  2. have a high maximum magnetic energy;
  3. have stable magnetic properties.

The cheapest material for permanent magnets is carbon steel (0.4 - 1.7% carbon, the rest is iron).

Magnets made of carbon steel have low magnetic properties and quickly lose them under the influence of heat, shock and shock.

Alloy steels have better magnetic properties and are used for the manufacture of permanent magnets more often than carbon steel. These steels include chromium, tungsten, cobalt and cobalt-molybdenum.

For the manufacture of permanent magnets, alloys based on iron - nickel - aluminum have been developed in technology.

These alloys are characterized by high hardness and brittleness, so they can only be processed by grinding.

The alloys have exceptionally high magnetic properties and high magnetic energy per unit volume.

Table 1 shows data on the composition of some hard magnetic materials for the manufacture of permanent magnets.

Table 1

Chemical composition of magnetically hard materials

Name of material Chemical composition in weight percent Relative weight per unit magnetic energy
Carbon steel Chromium steel Tungsten steel Cobalt steel Cobalt-molybdenum steel Alni Alnisi AlnicoMagnico 0.45 C rest Fe 2 – 3 Cr; 1 C 5 W; 1 C 5 – 30 Co; 5 – 8 Cr; 1.5 – 5 W 13 – 17 Mo; 10 – 12 Co 12.5 Al; 25 Ni; 5 CH 14 Al; 34 Ni; 1 Si 10 Al; 17 Ni; 12Co; 6 CH24 Co; 13 Si; 8 Al; 3 Dc 26,7 17,2 15,8 5,1 – 12,6 3,8 3,6 3,4 3,11

Source: https://steelfactoryrus.com/pochemu-med-ne-magnititsya/

Is rust magnetic? — Metals, equipment, instructions

Why is iron attracted to a magnet?

Is gold magnetic? The answer to this question can be learned from a chemistry course. Studying the properties of metals that are of noble origin, one can notice one similarity - they all do not react to a magnet.

It is impossible to attract gold or silver with a magnet. But many treasure hunters claim that with the help of a powerful magnet they were able to find jewelry made of gold or silver. Is this so or are braggarts simply talking about something that, in principle, cannot be?

When will a magnet attract gold?

Jewelry, as you know, is made not only from precious metals, which are so valued. In nature, their number is limited, and extraction is associated with certain difficulties. For this reason, jewelers dilute silver, gold or platinum with other metals. Copper, nickel and other elements that are not of particular value are added to the alloy.

Gold ring and magnet

Some craftsmen prepare high-quality fakes; it is difficult even for a jeweler to distinguish them from jewelry. You can use a magnet to check the authenticity of a product. If a piece of jewelry is attracted to a magnet, it means that it contains little gold and a lot of impurities. Gold plating can be applied to any metal. But the main thing is not to lose vigilance and examine the jewelry for the presence of the sample and determine the weight.

If a magnet has attracted a chain or ring, it is better to take the jewelry to a workshop for inspection or conduct a series of tests yourself.

In nature, a metal such as gold in its pure form is rare; if the nugget contains other elements, the magnet can react to them. The probability of this happening is low, but you should not lose hope.

So, let’s clarify why a precious metal can react to a magnet:

  1. Jewelry contains impurities that attract.
  2. In nature, gold can be part of an alloy; color and shine will help to recognize the element.
  3. The seeker found a fake, the surface of which was covered with gold.
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There are several more elements in the periodic table that, like noble metals, do not react to a magnet. These include:

If these components are added to the alloy, then jewelry cannot be distinguished from a fake in this way. It will also not be possible to find aluminum or copper at the bottom of a river or well.

Magnetic gold or silver can be found in nature; experts do not rule out that searching for the precious metal in this way can bring success. But the chances of this are extremely low. It is better to use other devices, for example, a metal detector.

Why do you need a search magnet?

If we put aside all the stories about searching for nuggets using this device, then we can safely say that a search magnet can be used for the following purpose:

  1. It will help you get something from the bottom of the river.
  2. Pull metal out of the swamp.
  3. Remove the load from a well or deep hole.

All places that cannot be examined with a metal detector should be checked using a search magnet.

The device is simple, it consists of a rope and the magnet itself. An alloy of iron, boron and neodymium will help to attract a load weighing from 80 to 600 kg, it all depends on the power and condition of the load.

If iron is found at the bottom of the river, which is covered with a coating of rust, but it weighs less than 10 kg, it is not a fact that the device will react to it. You may simply get scratched by rust or lose the weight in the process of being removed from the water.

The power of the product is tested on steel sheets, for this reason rust may affect the quality of work.

After each search, the magnet must be cleaned, otherwise a coating will form on its surface, which affects the properties and reduces the power. If you heat an alloy of bromine, iron and neodymium to 80 degrees, then it will lose its abilities irrevocably.

With active use, the magnet loses only 1% of its power over 10 years of operation. For this reason, such a purchase can be considered a profitable investment.

Main varieties:

  • one-sided - designed for vertical search;
  • double-sided - can be thrown from the shore and is also suitable for vertical search.

Magnets differ from each other not only according to these characteristics; the weight of the device and its cost are also taken into account. The more powerful the search magnet, the more expensive its price.

In addition to the price, the disadvantages of the magnet include the fact that the protective coating is peeled off during use. Damage to the layer leads to rust appearing on the surface of the device. For this reason, after each use the search magnet is washed, cleaned and dried.

When buying a magnet only to search for precious metals, you need to understand that such a purchase may not bring benefits. You can use a magnet in conjunction with other tools and devices that will help you find what you want.

Source: https://spb-metalloobrabotka.com/magnititsya-li-rzhavchina/

Why does a magnet attract iron?

A magnet is a body that has its own magnetic field.
In a magnetic field, there is some effect on external objects that are nearby, the most obvious being the ability of a magnet to attract metal. The magnet and its properties were known to both the ancient Greeks and the Chinese.

They noticed a strange phenomenon: small pieces of iron were attracted to some natural stones. This phenomenon was first called divine and used in rituals, but with the development of natural science it became obvious that the properties were of a completely earthly nature, which was first explained by the physicist from Copenhagen Hans Christian Oersted.

He discovered in 1820 a certain connection between the electric discharge of current and a magnet, which gave rise to the doctrine of electric current and magnetic attraction.

Natural science research

Oersted, conducting experiments with a magnetic needle and a conductor, noticed the following feature: a discharge of energy directed towards the needle instantly acted on it, and it began to deviate.

The arrow always deviated, no matter from which side he approached. French physicist Dominique Francois Arago began repeated experiments with a magnet, taking as a basis a glass tube rewound with a metal thread, and in the middle of this object he installed an iron rod. With the help of electricity, the iron inside began to be sharply magnetized, because of this various keys began to stick, but as soon as the discharge was turned off, the keys immediately fell to the floor. Based on what was happening, a physicist from France, Andre Ampere, developed an accurate description of everything that happened in this experiment.

Magnetic effect

Today it is obvious that the matter is not in miracles, but in a more than unique characteristic of the internal structure of the electronic circuits that form magnets. An electron that constantly rotates around an atom forms the same magnetic field.

Microatoms have a magnetic effect and are in complete equilibrium, but magnets, by their attraction, influence some types of metals, such as: - iron, - nickel, - cobalt. These metals are also called ferromagnets. In close proximity to a magnet, atoms immediately begin to rearrange and form magnetic poles.

Atomic magnetic fields exist in an ordered system; they are also called domains. In this characteristic system there are two poles opposite to each other - north and south.

Application

The north pole of a magnet attracts the south pole, but two identical poles immediately repel each other.
Modern life without magnetic elements is impossible, because they are found in almost all technical devices, including computers, televisions, microphones, and much more. In medicine, magnets are widely used in examinations of internal organs and in magnetic therapy.

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