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24/04/15

What are the precautions for the use of NdFeB magnets

1. NdFeB magnets are particularly magnetic. First of all, avoid holding hands or other parts of the body by magnets. For large-size strong magnets, more attention should be paid to safety. Do not connect strong magnets close to patients with electronic medical devices or devices such as pacemakers. 3, do not swallow the powerful magnet. If swallowed, should be immediately on medical treatment. Strong magnets should be placed out of the reach of children. 4, the magnet in use should try to ensure that the environment is clean, to avoid iron filings and other small impurities adsorbed on the surface of the magnet to affect the use. Magnetic debris flying into the eye can cause injury, be sure to use carefully. 5. NdFeB magnets should be stored in a ventilated and dry environment, acid

24/04/15

Development of Magnetic Tile for Permanent Magnet Motor

The development of magnet motor magnetic tile is changed according to the demand of permanent magnet motor itself. 1) Permanent magnet motors are divided into permanent magnet DC motors and permanent magnet AC motors. 1.1 permanent magnet AC motor refers to a multi-phase synchronous motor with a permanent magnet rotor. In the past, ferrite and AlNiCo magnetic tiles were mainly used. As the power requirements became higher and higher, ferrite and AlNiCo were due to the magnetic energy product. Low can not meet the requirements, and now NdFeB magnetic tiles are widely used in the field of high-power synchronous motors and generators. Of course, NdFeB magnetic tile, because of the precious rare earth resources, raw material prices doubled, its manufacturing costs and production prices will continue to rise in the future, affecting its in some low-end collar

24/04/15

How do magnet manufacturers control the quality of NdFeB strong magnetism

NdFeB magnets are also known as modern industrial monosodium glutamate. As an important additive in modern industry, high-performance magnets promote the progress of contemporary industrial fields and are widely used in various fields. The quality of finished magnets is mainly manifested in the following three aspects: magnet performance; magnet size; magnet coating. 1. magnet performance NdFeB blank material performance guarantee is the initial and most basic premise. 1, magnet blank manufacturers according to business needs to prepare different grades of NdFeB materials. The advanced nature of the magnet production process also determines the performance quality of the magnet. 3. The quality control in the process of sintering is also very important.

24/04/15

Common coatings for magnets

The magnet coating treatment is mainly aimed at the special working environment of the magnet. For example, the working environment of motor magnet and iron remover magnetic rod is relatively humid, so the surface coating treatment is required. At present, the main coating technologies of magnets are: zinc plating, color zinc plating, nickel plating, black nickel plating, nickel copper nickel plating, gold plating, silver plating, epoxy resin plating. NdFeB magnet surface coating treatment, according to the characteristics of the use of the product and the preservation of the line often different electroplating processing, the most common electroplating process is galvanized, nickel plating. The surface color of each plating layer is different. Each has its own advantages and disadvantages. Galvanized: the surface looks silvery white, can do 12-48

24/04/15

Scientists of the Chinese Academy of Sciences have made progress in the research of magnetic topological semi-metallic materials.

The team of scientists of the Chinese Academy of Sciences-researcher Zhang Changjin of the Strong Magnetic Field Science Center of the Hefei Institute of Material Science, and the Pili research group have cooperated to make new progress in the research of magnetic topological semi-metallic materials. Through magnetic and transport measurements and first-principles calculations under strong magnetic fields, researchers have conducted in-depth studies on the magnetic systems of lanthanide metal antimonides such as NdSb and DySb, and found magnetic topological semi-metallic states. Topological semi-metals are a new class of topological materials with low-energy excited states similar to elementary particles, which are of great significance in scientific cognition and practical applications. Among them, the Dirac point of the Dirac semi-metal has both

24/04/15

Scientists from the Chinese Academy of Sciences have made new progress in the field of electronically controlled magnetism of multiferroic heterojunctions.

Scientists from the Nano-Regulation and Biomechanics Laboratory of the Shenzhen Institute of Advanced Technology, a team of scientists from the Chinese Academy of Sciences, have made new progress in the field of multi-iron heterojunction electronically controlled magnetism. This research is a low-energy, non-destructive electric writing and magnetic reading storage The method provides a new way. Relevant results in Deterministic,Reversible,andNonvolatileLow-VoltageWritingofMagneticDomainsinEpitaxialBaTiO3/Fe3O4Heterostructu

24/04/15

Magnetic sweeping robot virtual wall is what?

The virtual wall, as its name implies, is a virtual wall, which does not really exist. What we call the magnetic stripe virtual wall is actually a slender magnetic stripe. If the magnetic stripe is fixed at the edge of a certain area, it can block the sweeper like a wall, blocking the sweeper outside the area for cleaning without affecting people's passage, this state is like the circle drawn by Sun Dasheng to his master in "Journey to the West". Tang Priest can enter freely, but monsters cannot. This function of the magnetic stripe virtual wall is really very practical, such as toilets and kitchens, which can block the entry of sweepers without closing the door. For example, the general toilet will

24/04/15

Magnet degaussing packaging

The so-called degaussing, in fact, the magnetism does not disappear, but the magnetic field distribution of the magnet is changed by the magnetic material. The degaussing packaging is generally isolated by iron sheet, and the six sides inside the box are fixed, then wrapped with pearl cotton, and then packed in cartons. For some magnets with weak magnetic properties, they can pass the security check of airlines. Some magnetic isolation materials sold on the market can also play a better degaussing effect. The strong magnet can be reassembled to reduce the magnetism of the strong magnet, so that the strong magnet can pass the airline's security check and be brought on the plane. The principle of magnetic isolation is to shield the magnetic field, multi-finger stable magnetic field or low-frequency magnetic field, mainly by the magnetic field circuit, if the box

24/04/15

Air transport of powerful magnets

Many customers ask whether magnets or magnetic components with strong magnetism can be transported by air. In response to this problem, it is first necessary to understand whether objects that exhibit strong magnetism to the external environment will affect the electronic equipment in the environment. Only then can it be decided whether air transport can be carried out. In this inspection process, a special organization (a testing organization approved by the logistics and transportation organization) needs to be entrusted to do magnetic inspection before air transportation, and Jiada Magnetoelectric will degaussing and package each batch of magnets that need air transportation, so that the magnetism displayed by the unit package meets the specified air safety transportation requirements. The general conditions for the carriage of air cargo are;

24/04/15

How to quickly select magnets

If you need to buy a magnet, please cooperate with us to confirm the following information: 1. The material and performance of the magnet. 2. Dimensions and corresponding tolerances. 3. Whether to magnetize, if magnetized, what is the magnetizing direction, axial or radial, and whether the magnetic pole needs to be marked. 4. The maximum temperature that the magnet working environment will reach. 5. Demand quantity. 6. The coating of the magnet: zinc plating, nickel plating, gold plating, or epoxy resin. 7. Is it necessary to transport by air so that we can handle the magnetic packaging. Source: magnet manufacturer Youlian Magnetics www.youliancy.com

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