Mold-Masters Fusion G2, User Manual

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Section 10 - Color Change
WARNING
Ensure that you have fully read “Section 3 - Safety” before purging
your FUSION SERIES
®
G2 system, paying special attention to the
recommendations for personal protective equipment.
10.1 Introduction
To change from one color to another, it is necessary to remove all traces
of the first color from the injection molding system. Refer to the following
procedures to assist in performing the color change.
Before commencing color change, review the following safety warnings.
10.2 Color Change for a Hot Tip / Sprue System
1. Ensure the system is running properly with the first color.
2. Back off the machine barrel, purge, and introduce the new color.
3. Increase the Hot Runner system temperature on all zones 15-25°C (59-
77°F) above processing temperature.
4. Increase injection speed.
5. Run 10 - 15 shots.
6.
Back off the injection unit and switch off all heat on the Hot Runner. Leave
mold cooling on.
7. Allow the Hot Runner system to cool down. This pulls the old material
away from the runner walls.
8. Turn ON the Hot Runner system and heat to processing temperature.
9. Bring machine barrel back in.
10. Increase injection speed and (mold temperature) until the color change is
acceptable.
11. Continue processing while re-setting Hot Runner system temperatures
and injection speed back to normal.
10-1
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COLOR CHANGE
FSG2 User Manual