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Ferromagnetic magnet only at a certain temperature ( TC) The following didn't show it

by:Newland     2020-04-20
Ferromagnetic magnet only at a certain temperature ( TC) Below to appear as a third generation of rare earth permanent magnet ndfeb magnet material, has the very high function, is widely used, but should pay attention to, in order to avoid the harm of corrosion, the need when using appearance as a maintenance process in ndfeb magnet, such as gold, zinc plating, as well as exterior coating epoxy resin and so on. Under outer magnetic field effect, magnetic moment and the magnetic field outside the same direction when putting the magnetic energy will be lower than outside the magnetic moment and the magnetic reverse when putting magnetic energy, the result is consciously magnetized magnetic moment and the external magnetic field into small point of view of magnetic domain in a strong position, gradually expand the volume of the magnetic domain ( Domain wall displacement) , and consciously magnetized magnetic moment and the external magnetic field into a larger view of the magnetic domain volume decreases; Outside magnetic field is stronger, the orientation and the external magnetic field into a larger view of the magnetic domain gradually disappear, retained and has conscientiously magnetization of the magnetic domain as a whole, to the external magnetic field direction in different degrees, such beginning shows microscopic magnetic materials; When the external magnetic field reaches the value must be all domain are increasingly turning to the external magnetic field direction, magnetized ferromagnetic reach full status, its full magnetization magnetization is in each domain, the value is very large. Ferromagnetic ferromagnetic only at a certain temperature ( TC) Just shown below, beyond the temperature, heat games collapse within the magnetic domain rules of the magnetic moment, consciously magnetization to 0, ferromagnetism, ferromagnetic completely turned into a paramagnetic material. This is called the Curie point temperature. , another one of the main properties of ferromagnetic quality is when the temperature dropped to a certain critical temperature, Phase transition temperature) TC, even without the effect of external magnetic field, will also be in & other; Consciously magnetization & throughout; Condition, at the moment of its internal magnetic domain orientation becomes height together and show the micro magnetic. Powerful magnet resistance good: ordinary magnet for magnets in the air will be constantly demagnetization, degaussing. Powerful magnet is given priority to with rare element, its itself has the very high coercive force, in the natural environment and under normal circumstances, could not affect its magnetic force, to ensure the stability of magnetic force. In exposed magnet, powerful magnets on the surface of the plating can well ensure the magnet is not affected by acid and alkali substances such as corrosion. Precision fine: powerful magnets detailed sex good, as the tolerance in size and magnetic numerical performance, have a professional machine such as gauss meter to measure, suggests that the magnetization direction, makes the error can be ignored, and ordinary magnet products production process is rough, don't calculate for the other error, greatly reduce the function of the already available. Powerful magnet in each aspect of the value is higher than ordinary magnet, its strong magnetic force, stable for resistance, heat resistance, hardness, reliable, meticulous precision notting have is not the advantages of strong magnet. So the price slightly higher than the ordinary magnet is taken for granted. Magnet company is the specialized production ( Ndfeb) Powerful magnet company, has factories in dongguan city based wangniudun pier town. Magnet products used in toys, jewelry, crafts gifts, handmade gift box, leather handbags invisible magnetic button, plastic hardware products, audio equipment and other industries. Our company is located in dongguan city based wangniudun block cao beijiao town five chung village industrial zone, the company can provide customers 24 hours delivery, 36 hours to the customers specifications template. Magnet experts to find and package your satisfaction, more magnets can view our company website WWW information. yirongciye。 com/。 This article rigorous reproduced, if there are any violation, the consequence is proud! Magnet, powerful magnets, special-shaped magnets, magnet manufacturer,
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