Magnum Venus Plastech Hypaject MK III - Manual (Page 15)

Hypaject MK III Instructions Issue 07: April 2001-04-23 15
4.4 Hypaject Cleaning and Shut Down.
Caution! Always ensure homogeniser pressure is zero before opening
load valve!
A) For Single Component Materials
Without Autosprue
1. Turn homogeniser pressure to zero and allow sufficient time for pressure to decay.
2. Remove injection hose from mould.
3. Switch homogeniser to vacuum.
4. Open inject valve and allow all resin in injection hose to be drawn into the homogeniser.
5. Place waste container under load pipe. Close inject valve. Switch homogeniser to
pressure. Ensure pressure is set to zero.
6. Open load valve and allow resin to flow into waste container.
7. Close load valve. Switch homogeniser to vacuum.
8. Place injection hose in container of flushing epoxy (i.e. epoxy which has not been
accelerated or catalysed and is liquid at room temperature).
9. Open inject valve and allow a sufficient quantity of flushing epoxy to be loaded through
the injection hose ensuring that the injection hose remains full at the end.
10. Close inject valve. Open load valve and allow a small amount of flushing epoxy to flow
through the load pipe to waste.
11. With the flushing epoxy inside the homogeniser, turn off all temperature outputs and
allow the whole machine to cool to ambient temperature.
12. Once at room temperature, open the load valve and allow all flushing epoxy to drain into
the waste container.
WARNING! BEFORE FLUSHING MACHINE WITH SOLVENT ENSURE THAT
ALL HEATED ZONES ARE AT AMBIENT TEMPERATURE!
13. Place injection hose into a container of solvent. Switch homogeniser to vacuum.
14. Open inject valve and allow a sufficient quantity of solvent to be loaded through the
injection hose.
15. Close inject valve. Allow solvent to circulate inside homogeniser under vacuum for 2-3
minutes.
16. Ensure homogeniser pressure is set to zero. Switch homogeniser to pressure. Open
load valve and allow solvent to drain from homogeniser into waste container.
17. Repeat steps 13-16 if necessary.
With Autosprue
1. Turn homogeniser pressure to zero and allow sufficient time for pressure to decay.
2. Ensure Autosprue is closed. Switch homogeniser to vacuum.
3. Open inject valve and allow all resin in injection hose and Autosprue to be drawn into the
homogeniser.
4. Place waste container under load pipe. Close inject valve. Switch homogeniser to
pressure.
5. Open load valve and allow resin to flow into waste container.
6. Close load valve. Switch homogeniser to vacuum.
7. Place Autosprue waste hose in container of flushing epoxy (i.e. epoxy which has not
been accelerated or catalysed and is liquid at room temperature).
8. Open inject valve and allow a sufficient quantity of flushing epoxy to be loaded through
the Autosprue and injection hose ensuring that the Autosprue and injection hose remain
full at the end. (Autosprue must remain closed throughout)
9. Close inject valve. Open load valve and allow a small amount of flushing epoxy to flow
through the load pipe to waste.