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Processing Procedure for Veromor
Purge
- Mix 20% VeromorŪ Purge with
medium flow HDPE, polypropylene or polymer you plan
to process next. (This avoids polymer contamination).
Virgin or regrind can be used.
- Starve screw & barrel.
- Temperature: Purge between
200-300 Celsius. Lower temperatures can be used. Ensure
carrying polymer will flow through equipment at the
lower temperatures.
- Polymer will be stiffer when mixed
with VeromorŪ Purge
- RPM: You do not need to adjust
the RPM in most cases prior to purging.
It is recommended that the amp meter be observed to
ensure purge is flowing satisfactorily through the
barrel.
- Add VeromorŪ
Purge polymer/purge mix to hopper
& process through equipment
For Injection Moulding
For Injection moulding. Add 1 2 kg (2.2-4.4
lb) of VeromorŪ Purge -XT polymer/purge
mix for every 25 mm (1 inch) barrel diameter. If openings
are smaller than 1.5mm use VeromorŪ Purge -XS.
For Hot Runner Systems
Add 1 2 kg (2.2-4.4 lb) of VeromorŪ
Purge -XR polymer/purge mix
for every 25mm (1 inch) barrel diameter.
For Extrusion Systems
Remove screen packs. Add 2 - 4 kg (2.2-4.4 lb) of
VeromorŪ Purge -XS polymer/purge
mix for every 25 mm (1 inch) barrel diameter.
Flush out VeromorŪ
Purge with polymer you plan to process next
Note:
If the screw & barrel have very bad carbonization,
increase amount of VeromorŪ Purge
processed through the barrel.VeromorŪ Purge
can be used at higher addition level but must
not exceed 35%
VeromorŪ Purge -XT
and VeromorŪ Purge -XS
are not suitable for hot runner systems.
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