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High temperature neodymium-Iron-Boron magnets demagnetization of the most effective solutions
Jan 16, 2017

A little magnet knowledge, you will know, ND-Fe-b magnet magnetic materials industry currently recognized the high-performance and cost-effective magnet products, many high-tech areas designated by it making all kinds of spare parts, such as defense, electronics, medical devices, electrical appliances and other fields are involved. Use more easily identify problems, neodymium-Iron-Boron magnet demagnetization and closely watched in a high temperature environment.

Why is neodymium-iron-boron in high temperature demagnetization?

Neodymium-Iron-Boron is produced in the high temperature demagnetization phenomenon, which is determined by the physical structure of their own. General magnet produces a magnetic field, because the material itself carries the electrons around the atoms rotate in a certain direction, so as to produce certain magnetic force, which have an impact on the surrounding issues. But electrons surrounding atoms in accordance with the established direction also have a certain temperature limit, different magnetic materials can withstand the temperatures are different, in the case of too high temperature, electrons will deviate from the original track, causing confusion when local magnetic field of magnetic substances will be disrupted, leading to demagnetization.

Neodymium-Iron-Boron magnet temperature resistance of about 200 degrees or so, which is more than 200 degrees, then for demagnetization phenomenon, if the temperature is too high, demagnetization is more serious.

High temperature neodymium-Iron-Boron magnets demagnetization of the most effective solutions

, Neodymium-Iron-Boron magnets products should not be put to a high temperature, paying particular attention to its critical temperature is 200 degrees, timely adjust its working temperature, you can minimize the demagnetization.

Second, from the technology, improve the performance of products using neodymium-Iron-Boron magnets, so that it can have a temperature structure, less vulnerable to environmental impacts.

Third, you can also select the same energy product of high coercivity materials. If not the only expense of energy product, find a lower energy product of higher coercivity material, then no, you can choose to use a samarium cobalt, reversible demagnetization, only selected samarium cobalt.

PS: the characteristics of each material has different. so, choose the most appropriate, economical. Design is thoughtful. otherwise it will lose it!

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