| 摘要 |
Disclosed are a spiral lamination core and a fixing method thereof. A spiral lamination core according to an embodiment of the present invention comprises a ring type lamination structure which is formed by a spiral rotation while a drawn steel sheet is laminated on an electric steel sheet from a lower layer to an upper layer. A plurality of coupling protrusions protrude to the outer side from the spiral lamination core. The coupling protrusion has a coupling hole for fixing a coupling member to the spiral lamination core. |
