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Continuous extrusion apparatus and method for the production of cable having a core sheathed with aluminum based sheath with a continuous extrusion apparatus
Continuous extrusion apparatus and method for the production of cable having a core sheathed with aluminum based sheath with a continuous extrusion apparatus
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机译:连续挤出设备和具有连续挤出设备的用于生产具有被铝基护套包裹的芯的电缆的方法
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摘要
Apparatus for continuous extrusion of an aluminum sheathing on to a core cable includes a rotatable wheel formed with two identical circumferential grooves outwardly bounded by arcuate tooling discharging through radial exit apertures to an extrusion chamber positioned around a portal mandrel. A powered pay-off reel is arranged continuously to supply core cable through the mandrel while aluminum sheathing is extruded as a loose fit from extrusion chamber around the core cable. The extruded cable is discharged through cooling device to roller corrugator including a rotating frame mounted on carriage freely moveable axially of the cable and provided with a rotational drive having a roller arranged to form a continuous helical indentation in the sheathing. Pneumatic actuating cylinders positioned on the carriage provide a constant, low magnitude, tension on the portion of the sheath intermediate the extrusion chamber and roller corrugator and limit forces tending to distort the uncooled sheath.
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