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How many magnetic ndfeb temperature demagnetization, how many temperature magnetic will disappear? _ ndfeb strong magnet manufacturers

by:Newland     2020-04-03
Ndfeb magnet, the magnetic energy product all over the world's largest, can have excellent magnetic, widely used in electronics, electricity, machinery, medical equipment, toys, packaging, hardware machinery, aerospace and other fields, is one of the more common permanent magnet motor, speaker, magnetic separator, computer disk drives, magnetic resonance imaging equipment instrument, etc. So how much will lose magnetic ndfeb strong magnet temperature? What temperature will completely lose magnetism? According to different materials, the working temperature is different, can keep the temperature of the magnetic difference is very big, we must first understand the magnet is resistant to temperature? Such as N brand ndfeb magnets can heat resistance is 80 ℃, which means he's highest working temperature is 80 ℃, magnetic will begin at 80 ℃. If when work environment to return to normal temperature, magnetic will fully recovered slowly. If long time under the highest working temperature, magnetic may be permanently lost. So it can heat resistance is how much temperature starts to lose ndfeb strong magnet in magnetic, N of ndfeb permanent magnet magnetic temperature is about 310 ℃, the temperature is N brand the Curie temperature of ndfeb magnet. In normal temperature, may also disappear magnetic several ways; 1, 2, violent collisions in the strong magnetic field that is about ndfeb strong magnet magnetic temperature, when the neodymium magnets close to or exceed the highest working temperature is suitable for, demagnetism degaussing happens, when the temperature reaches or exceeds the Curie temperature, magnetic will lose all. PS: common ferrite magnets Curie temperature about 450 ℃, 320 - ndfeb magnet 860-380 ℃, aluminum nickel and cobalt 900℃。 Working temperature: 80 ~ 100 ℃, ferrite magnet high-temperature models can reach 350 ℃; 60 - ndfeb magnet 200 ℃; Samarium cobalt magnet 250 ~ 350 ℃; Alnico magnets, 450 ~ 900 ℃ summary: this article mainly two key is ndfeb magnets, demagnetization and Curie temperature, such as have not understand, can continue to focus on this site.
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