公开(公告)号：US3720998A

公开(公告)日：1973-03-20

申请号：US3720998D

申请日：1971-05-06

Applicant: ASEA AB

Inventor： MALM A ,  FRANSSON J

IPC: H01R43/06 ,  H01R43/00

CPC classification number: H01R43/06 ,  Y10T29/49011

Abstract: Commutator segments are formed by hydrostatically extruding a billet having a core of aluminum or aluminum alloy and a tubular copper or copper alloy casing through a die of such shape that a thin strip is produced. This strip, either during extending or by rolling after extrusion, is given a shape which is thinner in the center than at the edges. The strip is cut longitudinally along its central axis and cut to suitable lengths.

Abstract translation: 通过将具有铝或铝合金芯体和管状铜或铜合金外壳的坯料通过产生薄带状的模具进行流体静力挤出而形成换向器段。 无论是在挤出时延伸还是通过轧制，该条带都具有比在边缘处更薄的形状。 条带沿其中心轴纵向切割并切割成合适的长度。