The composition of the high-temperature magnet is iron, cobalt, nickel and other atoms with special internal structure, and the atoms themselves have magnetic moments. In general, the arrangement of these mineral molecules is chaotic. And their magnetic regions affect each other, can not show magnetism, but under the guidance of external forces (such as magnetic fields), their molecular arrangement direction will tend to be consistent, showing magnetism, which is commonly known as magnets. Magnets are divided into permanent magnets and soft iron, permanent magnets plus strong magnetism, so that the spin of the magnetic material and the angular momentum of the electron form a fixed direction.
High temperature magnets can be divided into two categories: one is metal alloy magnets, including Nd2Fe14B, samarium cobalt magnets (SmCo) and aluminum nickel cobalt magnets; Second, ferrite magnets have special internal structures and magnetic moments. Types of high temperature magnets: shaped high temperature magnets: square high temperature magnets, tile high temperature magnets, shaped high temperature magnets, cylindrical high temperature magnets, circular high temperature magnets, magnetic bar high temperature magnets, magnetic frame high temperature magnets, high temperature magnets: samarium cobalt magnets, NdFeb high temperature magnets, ferrite high temperature magnets, aluminum nickel cobalt high temperature magnets, iron chromium cobalt high temperature magnets, occupational high temperature magnets: Magnetic components and motors high temperature resistant permanent magnet high temperature resistant magnet plus strong magnetism, so that the spin of the magnetic material with the angular momentum of the electron arranged into a fixed direction. Soft magnets add current (which is also a method of adding magnetic force), soft iron is removed by the current, and it will gradually lose its magnetism.
The composition characteristics of high-temperature magnets with different properties are different, and the magnetic force size is also different. Under normal circumstances, different types of high-temperature magnets can be divided into four types.
