Device and method for heating up extrusion dies prior to...

Details Device and method for heating up extrusion dies prior to... Device and method for heating up extrusion dies prior to...

2005-11-04

2008-07-01

Wilson, Gregory A (Department: 3749)

Heating

Processes of heating or heater operation

Including melting, vaporizing, sintering, expanding...

C432S247000, C425S012000, C425S190000, C264S472000, C065S183000

Reexamination Certificate

active

07393205

ABSTRACT:
The invention relates to a device for heating up extrusion dies prior to their installation in an extruder, whereby the dies are heated up to a prescribed temperature and kept at this temperature. The device is characterized in that it comprises a gas-tight and thermally insulated oven housing (50) that has at least one charging and discharging opening (70) with an oven cover (40) and, inside the oven housing, there is an impact nozzle field (20) into which a die (90) can be placed, and in that the device (10) is provided with a heating means (100) that heats up a fluid that flows through the openings (110) of the impact nozzle field (20).The invention also relates to a method for heating up extrusion dies prior to their installation in an extruder.

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“Neue Anlage zur Erwärmung von Strangpresswerkzeugen,” Jan. 1999.

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