| 摘要 |
<p>The method comprises the steps of providing a strip (1) of conductive material, particularly copper, subjecting the strip (1) to plastic deformation so as to form therein parallel grooves (2) between which a plurality of equally-spaced transverse segments (3) is defined, the segments being interconnected by connecting bridges (4), bending a portion of the strip (1) so as to form a ring (7) with the segments (3) spaced equiangularly, incorporating the ring (7) in an insulating material (9) which extends into the grooves (2) defined between the segments (3) so as to form a monolithic annular structure (11) the axis of which coincides with the axis of the ring (7), and machining the structure (11) with the removal of material, to remove the connecting bridges (4) so that the segments (3) are separated and insulated from one another. <IMAGE></p> |
