Spanner Science and Technology
New application of the radial multipole magnetic hard ferrite ring A new application of the radial multipole magnetic hard ferrite ring: the ring whose magnetic flux densit is sine wave shape on the surface, is made by new technology. Its magnetic property can reach about 210mT. Using
+Hard ferrite magnets are manufactured from iron oxide and either barium carbonate or strontium carbonate. The raw materials are mixed in the correct proportions, granulated, and calcined (presintered). After going through several intermediate phases, a hexaferrite phase (BaFe12O19 or SrFe12O19) is a
+Ceramic magnets are composed of iron oxide, barium and strontium elements. This class of magnets has a higher magnetic flux density, higher coercive force, and higher resistance to demagnetization and oxidation compared to other non-rare earth permanent magnets. The biggest advantage of such magnets
+The polar asnisotropic ferrite magnets are the magnets with multipoles in ring shape. They have become the key componnet of stepping motors which are widely used in motors, micro motors DC motors and other new generation of permanent magnet motors.
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