| 摘要 |
A non-magnetic piece (12) separates magnetic pieces (1, 9), forming opposite poles. They are composed of tube elements with a lateral surface and edges and transverse ends making an external radial thickness corresponding to the given piece. The cylinder (13) is made of non-magnetic material and has transverse slots (15) to receive a distal tube elements (14, 140) of the magnetic pieces. The radius and radial thickness of the distal elements are approximately equal to those of the cylinder and their edges are complementary to those of the slots which are convergent in shape from the inside to the outside. The distal elements are inserted first at the filling stage. After isostatic compression, the rotor is shaped axially to give a particular external form. |
