Can the iron powder in the hydraulic oil be attracted by the high suction magnet?

Magnets attract iron powder.

Magnetic fields exert forces on various metal pairs, with no exceptions. Therefore, the magnet does not violate the law of conservation of mechanical energy.

Target. But there are three scenarios. In this way, metals are divided into three types: paramagnets, countermagnets, and ferromagnets.

1.Paramagnets: Can be slightly attracted to magnets.

2.Countermagnet: Slightly repelled by the magnet.

3.Ferromagnets: Magnets are strongly attracted.

There are only three types of ferromagnets: iron, cobalt, and nickel. The rest are either paramagnets or countermagnets. There are also their alloys, whose magnetic properties are close to ferromagnets in varying degrees.

Stainless steel containing nickel can be (strongly) attracted to magnets. Stainless steels that do not contain nickel (often containing chromium) react weakly to this iron and are not easily noticed. The latter is harder because it contains chromium. The former is commonly known as stainless iron.

Aluminum and copper are suspended in long, thin wires and made to stand still without oscillation. Slowly approach aluminum or copper laterally with a magnet and you will find that they will be slightly attracted or repulsed. So they are paramagnets and inverse magnets, respectively.

Magnets. Scientific name magnet A magnet is a type of magnet.

Magnets are able to attract metals such as iron, nickel, and cobalt, and are commonly known as magnets. It can be divided into general and common permanent magnets.

and electromagnets that are magnetic only when energized.

If a magnet is made into a rod or needle and suspended, it will naturally point to the north and south poles of the earth. Magnets are divided into large magnets and small magnets. Large magnets Magnets are used in a wide range of applications, using electromagnets to make cranes that transport steel.

When electrified, it becomes a powerful magnet, so it can absorb heavy steel. When you put down the steel, just cut off the power supply.

Small magnets are compasses as compared to large magnets.

It is small and light, and the magnetism is much weaker. The role of the compass is not to draw iron, but to reflect the magnetic force of the earth.

The property of magnets to attract substances like iron, cobalt, nickel, etc., is called magnetism. The area where the magnet is magnetically strong at both ends is called the magnetic pole, with one end being the north pole (n pole) and the other end being the south pole (s pole). Experiments have shown that the magnetic poles of the same sex repel each other, and the magnetic poles of the opposite sex attract each other.

There are many primary magnets with two opposite poles in iron, and when there is no external magnetic field, these primary magnets are arranged disordered, and their magnetism cancels each other out and does not show magnetism to the outside. When the iron is brought close to the magnet, these protomagnets are neatly arranged under the action of the magnet, so that the end close to the magnet has a polarity opposite to the polarity of the magnet and attracts each other. This shows that the iron can be magnetized by the magnet due to the presence of the original magnet.

Metals such as copper and aluminum do not have a primary magnet structure, so they cannot be attracted to magnets.

I feel that the upstairs is doing popular science, but I didn't answer the point.

It is a very common operation to use magnets to remove iron slag and iron powder in engine oil and hydraulic oil, but the main function is to warn rather than remove...

If the device is installed in a place with a high flow rate, the effect must be poor, and the impurity removal effect will be better in the necessary channel with a relatively slow flow rate, but it is mainly achieved with a filter.

Remove most of it by hand, and paste the remaining small amount with a sticker strip and tear it off.

You can soak the magnet in dilute hydrochloric acid to adjust the iron powder on top

1. Use a small piece of mixed dough and roll it back and forth on a magnet with iron powder to stick the iron powder off.

2. Use glass tape to stick off the iron powder on the magnet and the effect is also good.

3. If there is residual magnetism after the power failure, the electromagnet can be added with moderate flyback magnetism through the control line, which can be demagnetized at the bottom, and the end of the broken iron will naturally fall off.

4. Wrap another magnet in a cloth and untie the cloth after sucking.

1: Remove most of the iron powder by hand, and then bake the magnet in the oven, the magnet will be demagnetized after heating, and if there is no magnetism, of course it will fall!

2: Remove most of the iron powder by hand, and then use transparent glue to glue the iron powder where there is iron powder, and stick the iron powder down little by little!

Dock the magnets with different poles and remove them.

Put the magnet on the fire and roast it, it will fall.

If understood from the atomic level.

I'll quote an answer to you, see if you understand?

According to the bonding theory, when atoms are close to each other to form molecules, electron clouds overlap each other and electrons exchange with each other. For transition group metals, the 3d state of the atom is not much different from the energy of the s-state, so their electron clouds will also overlap, causing the redistribution of electrons in the s- d state. This exchange results in an exchange energy EEX (related to the exchange integral) that has the potential to align the spin magnetic moments canceled by the end of the D layer in adjacent atoms in the same direction.

Quantum mechanical calculations show that when the electron exchange integral of the adjacent atoms inside the magnetic substance is positive (a 0), the magnetic moments of the adjacent atoms will be arranged in parallel in the same direction, so as to achieve spontaneous magnetization. This is the reason why ferromagnetism arises. The essence of this electron exchange effect of adjacent atoms is still that the electrostatic force forces the electron spin magnetic moment to align in parallel, and the effect is like a strong magnetic field.

This is how the Waisi Molecular Field got its name. Theoretical calculations show that the exchange integral a is not only related to the wave function of the electron motion state, but also strongly depends on the distance rab (lattice constant) between the nuclei of the daughter atoms, and the exchange integral can only be positive if the ratio of the distance between the nuclei rab and the distance of the electrons participating in the exchange from the nucleus (electronic shell radius) r is greater than 3. Iron, cobalt, nickel, and certain rare earth elements meet the conditions for spontaneous magnetization.

The A of chromium and manganese is a negative value, not a ferromagnetic metal, but through alloying, change its lattice constant, so that the ratio of Rab R is greater than 3, and a ferromagnetic alloy can be obtained.

Because ferrous sulfide is no longer called iron, it has lost its iron properties. Just like iron oxide in the blood, which is a color of blood, you say that it is impossible for a magnet to suck blood.

The problem is very simple, there are magnetic domains in ferric tetroxide, and individual free forms of ions are not magnetic. The interaction of a large number of ions and the isotropic motion of electrons can create magnetic domains that are magnetic. Ferrous ions may or may not be magnetic in substances of different structures.

It is related to the form of molecular binding.

- -Fe3O4 is called magnetite. It's a magnet. So there is.

Only objects with ferromagnetism can be attracted by magnets, and objects without ferromagnetism cannot be attracted by magnets, such as copper, plastics, etc. Ferrous sulfide is a new substance, not iron, it does not have the properties of iron, it is not ferromagnetic, so it is not attracted to magnets.

This can be opened and pasted and directly sucked iron powder, but when the magnet sucks the iron powder, it is particularly difficult for you to clean it up at this time, so there is still a box in the middle.

In that way, one is that it does not show the appearance of magnetic field lines; The other is that the iron powder sticks to the magnet and is difficult to get off, which is particularly difficult to clean.

One is a magnetic phenomenon and the other is an electrical phenomenon.

Magnets can force magnetic substances such as iron and nickel and electrostatic energy can force charged bodies.

Theoretically, yes.

It's actually not very easy to use, because the particles are so small that they get caught in the middle.

The adsorption is not clean, just like the iron sand adsorbed by a magnet, there will be sand in the middle.

Of course, there are harms, which can affect the magnetic field of the phone, just like placing a magnet next to a TV.

Definitely has an impact on the magnetic field of the mobile phone is very important! Take it to the mobile phone store and let people see it.

100% impact, my factory is to make magnets, I don't bring my mobile phone with me to work, and the magnet contact is long, the first is to affect the signal, the second is to affect the magnet in the earpiece, so that you can't hear clearly, the earth said above is a magnetic field, which is because the magnetic field of the earth is too small, you use a 10 grams of NdFeB strong magnet to contact your mobile phone, your mobile phone immediately scrapped.

Those who don't believe can try it for themselves!

First, you need to know that there are magnets in the phone, speakers, vibrator motors, and flips all use magnets.

Second, the external effect of the magnet is a static magnetic field, which is not alternating and therefore does not produce an electromagnetic field.

Third, the mobile phone circuit is shielded, but it only shields the electromagnetic field, and has little effect on the static magnetic field shielding.

Fourth, it is not accurate to say in general terms that electrical appliances and magnets are not good together. There are too many magnets in the appliance. Magnets have an effect on magnetic recording material. It also has an effect on CRT, but can be degauss