Continuous extrusion apparatus

Details Continuous extrusion apparatus Continuous extrusion apparatus

2006-01-24

2006-01-24

Tolan, Ed (Department: 3725)

Metal deforming

By extruding through orifice

By rotating impeller means

C072S342800, C072S342940

Reexamination Certificate

active

06988389

ABSTRACT:
Die heater body assembly for continuous extrusion apparatus includes a die block of non-magnetic material for the extrusion of copper tube and a bucket portion forming a sliding fit in a die heater body. The die heater body includes a coil of copper tubing in a ceramic support material provided with electric power and cooling water connections to heat the bucket portion by electrical induction to a temperature of approximately 700° Celsius. To concentrate the electric induction heating effect at the bucket portion low reluctance magnetic members and magnetic material end blocks direct eddy current flow toward the bucket portion. Weakening of the shoe as a consequence of provided the heating is limited.

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