Sintered NdFeB magnet is a kind of alloy magnet, mainly composedof Neodymium, Iron, Boron and other microelements (Dy,Al,Nb,Mo,Co and so on). Sintered NdFeB magnet has high energy,high coercive force, high cost performance, and also goodmechanical feature. Sintered NdFeB magnet is known as“King ofmagnet".