
19.6 Startup and Shutdown
WARNING
When the mold is open, never inject material through the Hot Runner
system under high pressure. Failure to obey can result in serious injury or
death.
NOTE
The startup and shutdown procedures for Melt-CUBE design A and Melt-
CUBE design B are identical.
See also “Section 8 - System Startup and Shutdown” and your controller user
manual.
19.6.1 Startup
CAUTION
Failure to do the following procedure may result in leakage or damage
occurring in the Hot Runner.
CAUTION
NOTE
When running thermally sensitive materials, use a thermally stable material
as recommended by the material supplier for the initial startup.
1. Heat the bridge and inlet to the processing temperature.
2. Heat the nozzles to the set-point temperature.
3. Wait 10 minutes.
IMPORTANT
The nozzle temperature must be set 6°C (10°F) lower than the Melt-CUBE
temperature.
4. Heat the Melt-CUBE
to the processing temperature.
5. Heat soak for a minimum of 5 minutes.
6. Fill the system under low pressure extrude using screw rotation.
19.6.2 Shutdown
CAUTION
Failure to do the following procedure may result in leakage or damage
occurring in the Hot Runner.
CAUTION
NOTE
Thermally sensitive materials should be purged from the Hot Runner
system prior to shutdown using a thermally stable material with a similar
processing temperature.
1. Reduce the Melt-CUBE system temperature to 150°C (300°F).
2. Reduce the nozzle temperature to 150°C (300°F).
3.
Turn off all zones.
19-34
© 2020 Mold-Masters (2007) Limited. All Rights Reserved.
MELT-CUBE SYSTEMS
Hot Runner User Manual
Содержание Hot Runner
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