METHOD FOR THE CONTINUOUS CASTING OF TUBES

METHOD FOR THE CONTINUOUS CASTING OF TUBES

Apparatus for the continuous casting of tubes includes a mandrel which extends into the mold. The diameter of the mandrel is expandable and contractable, suitably by having the mandrel composed of radially movable segments. During casting the diameter of the mandrel is expanded when there is no rela...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: WILLI SIMONS
Format: Patent
Sprache:eng
Schlagworte:
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
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Beschreibung
Zusammenfassung:Apparatus for the continuous casting of tubes includes a mandrel which extends into the mold. The diameter of the mandrel is expandable and contractable, suitably by having the mandrel composed of radially movable segments. During casting the diameter of the mandrel is expanded when there is no relative movement between the tube being formed and the mandrel, and is contracted when the tube moves relatively off the mandrel. In oscillating molds, in which the mandrel also oscillates, there would be no relative movement between the mandrel and the tube during the downward movement of the mandrel, during which the mandrel is expanded. On the upward movement the mandrel would be contracted.