Mold-Masters Hot Runner - Startup - Reverse Melt Link ONLY

18.8.2 Startup - Reverse Melt Link ONLY
WARNING
When the mold is open never inject material through Hot Runner system
under high pressure. Failure to do so can result in serious injury or death.
CAUTION
Failure to follow this procedure may result in leakage or damage occurring
in the Hot Runner.
CAUTION
IMPORTANT
When running thermally sensitive materials, use a thermally stable material
as recommended by the material supplier for the initial startup.
Please see “18.1 Reverse Melt-Link Identication” for more information on
how to identify if your system has a Reverse Melt Link.
1. Turn on the machine barrel and mold cooling system.
2. Prior to start up, ensure the:
a) Machine barrel is up to processing temperature.
b) Mold cooling is on and at cooling temperature.
3. Heat manifold zones and inlets to processing temperature.
4. Heat nozzles to processing temperature.
A small amount of material may weep at this stage.
IMPORTANT
Set nozzle temperatures at least 6°C (10°F) lower than Melt-Disks.
5. Heat Melt-Disks to processing temperature.
6. Heat soak for a minimum of 10 minutes.
7. Fill the system under low pressure extrude using screw rotation.
18-12
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MELT-DISK SYSTEM
Hot Runner User Manual