Neodymium Magnet Manufacturing Process

Sintered Neodymium magnet is prepared by the raw materials being melted under vacuum or inert atmosphere in an induction melting furnace, then processed in the strip caster and cooled to form Nd-Fe-B alloy strip. Alloy strips are pulverized to form a fine powder with several microns in diameter. The fine powder is subsequently compacted in an orientation magnetic field and sintered into dense bodies. The bodies are then machined to the specific shapes, surface treated and magnetized.