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How to consider the specifications and types of magnets

When choosing NdFeB magnets, customers should choose the magnet trademark suitable for them according to their working temperature. If the working temperature is higher than the...

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MT Long stroke traction electromagnet

The MT long stroke traction electromagnet is composed of a coil, a moving iron core, and a static iron core power controller. The structure is a shell like structure, applying the leakage magnetic flux principle of a spiral tube, and utilizing the electromagnetic moving iron core and the static iron core to engage for a long distance, with a stroke of over 40mm --60mm. Realize the linear reciprocating motion of the traction rod. Adopting the principle of power supply and electronic control conversion, high-power startup, and low-power maintenance, Hebei Qinneng patented demagnetization technology. The electromagnetic traction force reaches 300 kilograms. The traditional AC traction electromagnet starts and operates at a voltage and current, which is prone to burning the coil, causing limited traction and limited travel. The action of the long-distance traction electromagnet is simple and rapid, rising for 0.10 seconds and returning for less than 0.05 seconds. The operating frequency is

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2023-07

Diamagnetism

There are electrons around the nucleus. The electrons are divided into Electron shell according to their energy. Each Electron shell is divided into sub Electron shell. There are orbits in the sub Electron shell. Each orbit has only two electrons with opposite spin directions. The existence areas of these two electrons can be considered to be basically the sameWhen an external magnetic field appears, all electrons in Orbital motion will be affected by the magnetic force, and their rotating circles will be offset by a certain degree, which will produce a small additional magnetic field, that is, magnetic moment. But if another electron in the same orbital with opposite spin also produces an opposite additional magnetic field, the magnetic moment of the previous electron will be offsetSo the more single electron orbitals, the greater the magnetic momentSuch molecules include H2O, SiO2, and AlCl3When the magnetization M is negative, the solid is Diamagnetism. Metals such as Bi, Cu, Ag, Au

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2023-07

Soft magnetic functional composite materials

Soft magnetic functional composite material is a composite material composed of soft magnetic ferrite and polymer matrix, which has soft magnetic function. For soft magnetic materials, low Coercivity and high permeability are required to minimize the effect of permeability falling rapidly with the increase of frequency. It is advantageous to use thin film materials with high resistivity and small thickness. Soft magnetic functional composites can just play these characteristics. This is because the polymer matrix is insulating, and the composite with conductive magnetic body improves the resistivity. At the same time, the polymer is easy to process into thin sheets with good strength and flexibility. More importantly, the polymer separates and encloses the magnetic body, thus greatly reducing the eddy current loss and not heating the magnetic material. The loss of the magnetic iron core used as a low-frequency device is only 1C} W} kg. This type of material is mainly used for the iron

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2023-07

Principles of electromagnet

a. Insert the iron nail (or soft iron) into the inside of a threaded coil, when the coil is connected to the current, the magnetic field inside the coil will be magnetic and magnetic.b. The magnetic field generated by the iron nails and the magnetic field in the original coil makes the total magnetic field intensity greatly enhanced.c. When the current is cut off, the magnetism of the coil and the iron nails disappears immediately. The magnet obtained by this method is called the electromagnet.d. Enhance the magnetic field method of the thread pipeline coil [1] Increase the number of units [2] Enhance the circular current [3] Put the soft magnet6. The characteristics of electromagneta. Can increase the current and increase the number of coils to make its magnetic force greater than natural magnets. You can hang huge steel plates or abandoned cars. There are also electromagnets in Ampere and Volt.b. The power generation generates magnetism, and the magnetic disappearance is disappeared

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2023-07

The magnetic effect of the current

1. What is the magnetic effect of current?a. The magnetic effect of the current (the magnetic power generates the magnetic): Ost found that any wire with a current can generate a magnetic field around it, called the magnetic effect of the current.b. Non -magnetic metals are current, but the magnetic field can be produced, and its effect is the same as the magnetic field established by the magnet.2. The magnetic field generated around the long straight wire with current.a. Around the long straight wire of the general current, there will be a magnetic field. The shape of the magnetic force line is a concentric circle that is closed with the wire of the wire, and the direction of the magnetic field is perpendicular to the direction of the current.b. The Law of Ampere: The magnetic field established around the long straight wire with current, which is directly proportional to the size of the current on the wire, and is inversely proportional to the distance between the wires.c. The directi

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2023-07

Gyromagnetic material

The rotational magnetism of magnetic materials refers to the phenomenon where a plane polarized electromagnetic wave * propagates in a certain direction within the material under the action of two mutually perpendicular DC magnetic fields and electromagnetic wave magnetic fields, and its polarization plane * * continuously rotates around the propagation direction (Figure 3). This type of material with rotational magnetic properties is called a rotational magnetic material.Under the action of direct current magnetic field and electromagnetic wave magnetic field, the phenomenon where a plane polarized electromagnetic wave * propagates in a certain direction within the material, and its polarization plane * * continuously rotates around the propagation direction. This material with rotational magnetic properties is called a rotational magnetic material. Although metal magnetic H material also has rotational magnetism, due to its low resistivity and high eddy current loss, electromagnetic

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2023-07
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