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NdFeb Magnets Has A Strong Magnetic
Sep 12, 2017

NdFeb Magnets Has a strong magnetic

A material or material that can produce a magnetic field, usually made of a metal alloy, having a strong magnetic property. Traditionally, it can be divided into "permanent magnets" and "non-permanent magnets". Permanent magnets can be natural products, also known as natural magnets, can also be manufactured by artificial (the strongest magnet is NdFeB magnets). Non-permanent magnets heated to a certain temperature will suddenly lose the magnetic, which is composed of the composition of the magnet "yuan magnet" arrangement from order to disorder caused by the loss of magnetic magnet into the magnetic field, when the magnetization To a certain value, it was magnetized, "Yuan magnet" arrangement from disorder to order. Basic knowledge Ancient Greeks and Chinese people found in nature a kind of natural magnetization of the stone, called "iron". This stone can be a magic suck up a small piece of iron, and after the random swing is always pointing to the same direction. The early sailors used this magnet as its earliest compass to identify the direction of the sea. After thousands of years of development, today the magnet has become a strong material in our lives. By combining the different materials of the alloy can achieve the same effect with the magnets, but also can improve the magnetic force. In the 18th century there were man-made magnets, but the process of making stronger magnetic materials was slow until Alnico was made in the 1920s. Subsequently, the 1950s to create a ferrite (Ferrite), 70 years to produce rare earth magnets. At this point, the magnetic technology has been rapid development, strong magnetic materials also makes the components more compact. Magnetization (orientation) direction Most of the magnetic material can be magnetized in the same direction to saturation, this direction is called "magnetization direction" (orientation direction). Magnets (also called isotropic magnets) that are not oriented are much weaker than the magnetic properties of the orientation magnets (also called anisotropic magnets).

What is the standard "North-South" industrial definition? The "Arctic" is defined by the magnet that rotates its Arctic to the Earth's Arctic after its rotation. Likewise, the south pole of the magnet also points to the Antarctic of the Earth. How do I identify the north pole of a magnet without marking? It is clear that only the eyes can not tell. You can use the compass close to the magnet, the pointer to the Earth's Arctic will point to the magnet's south pole. How to safely handle and store magnets? Always be careful, because the magnet will be attached to their own, may be caught fingers. Magnet is also likely to be damaged by the collision of the magnet itself (hit the corner or knock out the crack). The magnet away from easy to be magnetized items such as floppy disks, credit cards, computer monitors, watches, mobile phones, medical equipment and so on. The magnet should be away from the pacemaker. Larger magnets should be filled with plastic or cardboard pads between each piece to ensure that the magnets can be easily separated. Magnets should be stored in a dry, constant temperature environment. How to do magnetic isolation? Only the material can be adsorbed to the magnet to play a role in blocking the magnetic field, and the thicker the material, the better the effect of magnetic isolation. What is the strongest magnet? At present, the highest performance magnet is rare earth magnet, and in the rare earth magnet NdFeB is the most powerful magnet. However, in the 200 ° C above the environment, SmCo is the most powerful magnet. Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, Magnet, , Samarium cobalt, ferrite and NdFeB, of which the most expensive is the samarium cobalt magnet, the cheapest is ferrite magnet, the highest performance is NdFeB magnet, but the performance of the most stable, temperature The best coefficient is aluminum-nickel-cobalt magnet, the user can choose according to different needs of different hard magnetic products. How to define the performance of the magnet? There are three main performance parameters to determine the performance of the magnet: Remanence Br: permanent magnet magnetized to the technical saturation, and remove the external magnetic field, the retention of Br called residual magnetic induction.


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