Ambient temperature. Since sintered NdFeB has a negative temperature coefficient (αBr<-0.13%/°C, αHcj<-0.6%/°C), the instantaneous maximum temperature and the continued maximum temperature of the operating environment will cause different degrees of demagnetization of the magnet itself. Contains reversible and irreversible, rehabilitative and non-recoverable. environment humidity. NdFeB itself is easily corroded and oxidized. Generally, we use external treatment to maintain permanent magnets, but we cannot fundamentally deal with the influence of ambient humidity on magnets. The boring environment, the longer the service life of the magnet. How to measure the bump of magnetic function? There are three main parameters: Residual Induction, unit Gauss, which is a parameter to measure the strength of the magnetic field supplied by the magnet; Coercive Force, unit Oersteds, is a parameter to measure the anti-demagnetization ability; the magnetic energy product BHmax , the unit Gauss-Oersteds, is a physical quantity that characterizes how much energy can be stored. The permanent magnet high temperature resistant magnets are divided into two categories: the top categories are: metal alloy high temperature resistant magnets containing NdFeB high temperature resistant magnet Nd2Fe14B), samarium cobalt high temperature resistant magnets (SmCo), AlNiCo high temperature resistant magnets (ALNiCO) second The main categories are: ferrite permanent magnet data (Ferrite) high temperature magnets have a special internal structure of the atom, and they have a magnetic moment. High temperature resistant magnets: Shape high temperature resistant magnets: square high temperature resistant magnets, tile shaped high temperature resistant magnets, shaped high temperature resistant magnets, cylindrical high temperature resistant magnets, ring high temperature resistant magnets, wafer high temperature resistant magnets, magnetic bar high temperature resistant magnets Magnetic frame high temperature resistant magnet, characteristic high temperature resistant magnet: samarium cobalt magnet, neodymium iron boron high temperature resistant magnet, ferrite high temperature resistant magnet, AlNiCo high temperature resistant magnet, iron chrome cobalt high temperature resistant magnet, professional high temperature resistant magnet : Magnetic components, motor high temperature resistant magnets, rubber high temperature resistant magnets, strong high temperature resistant magnets, plastic magnets, etc. High temperature resistant magnets are divided into permanent high temperature resistant magnets and soft magnetic. Permanent high temperature resistant magnets are coupled with strong magnetism, so that the spin of the magnetic material and the angular momentum of the electron are arranged in a fixed direction, and the soft magnetic is added with current (also a plus) Magnetic method) When the current is removed, the soft iron will gradually lose its magnetism.