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.