|
Causes of carbon contamination
in injection molding machines include:
- Resin remaining
in the molding machine for long periods of time
- Melted
resin coming into contact with air
In practice, it seems
that users sometimes stop the molding machine, empty the
cylinder, and cut the power supply, but in these cases
the above conditions can certainly arise if the temperature
has not dropped sufficiently, and if the temperature is
raised again. Replacing the molding material with a resin
that does not carbonize easily and sealing the screw when
stopping the machine is an effective way to
prevent the carbon contamination that occurs when stopping the molding
machine, and CELPURGE MA2 is highly effective as a sealant.
CELPURGE MA2 not only resists carbonization even when remaining
in the molding machine for long periods of time or when
coming into contact with air, but also combines a component
that plasticizes carbonized materials. Therefore using
it when stopping the machine can create a “soaking
effect.” Furthermore, components that can plasticize
carbonized materials are not surfactants; in fact, this
is a big difference between surfactant type purging compounds
and CELPURGE.
|
