| 摘要 |
<p>1435654 Welding by pressure FRATER SA 22 March 1974 [3 April 1973] 12919/74 Heading B3R [Also in Division H1] Core parts 4, 5 of one or more #-laminations have protrusions 1 which are resistance welded under pressure to the opposing core part, thereby enclosing a winding supported on a spool (Fig. 3, not shown) In a preferred embodiment, protrusions 1 of a stack of laminations can be aligned to form a continuous lip. The welding of isolated laminations in a stack is also envisaged, and the welding in all cases may be under pressure.</p> |
