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Magnet manufacturers commonly used measure of magnet magnetic performance

by:Maghard      2020-09-13
Finished product whether it conform to the requirement of the production of a magnet, generally in the magnet manufacturer that has its own strict standards, each magnet manufacturer approved standards may differ, but plus ca change, judge the magnet magnetic properties in the magnets production industry has three rigid standards, namely the remanence Br, coercive force Hc and magnetic energy product Bhmax, let's look at these three methods of standard represents what. First remanence Br, it refers to the magnet products after saturation state down in addition to its own magnetic field, how much is the rest of the magnetic flux density, it is the unit of gauss, refers to the magnet to the outside world in the process of using the magnetic field strength size, different types of magnet remanence Br is not the same. Now, in general, the production process can be precise control of all kinds of magnet production reached the specified remanence Br value, when buy the user can directly by detecting instrument to test the product. The second is the coercive force Hc standard, it refers to put the magnet products in a magnetic field and the conditions of itself exactly the opposite, when the reverse effect of the magnetic field strength increases to a certain extent, the original product itself magnet magnetic disappeared. Resist the reverse magnetic field force, the size of the magnet product is magnet coercive force Hc, it is the unit of oersteds, represents the size of the magnet demagnetization resistance itself, it attaches great importance in the process of magnet manufacturers, it also represents the service life of the product. The third criterion is magnetic energy product BHmax, it represents the magnet in the unit volume of products that can produce a magnetic field ability, is a measure of the magnet magnetic magnet manufacturer performance is a very important criterion, represents how much the magnetic capability of saving by the product itself. /
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