In order to avoid any reaction of molten Magnesium
with ambient air, melting furnace is
designed and performed with a tight crucible
cover and melting bath is protected by gas,
which is mixed in the protection gas unit.
There, carrier gas as Nitrogen, CO2, Argon is
mixed with the protection gas as SF6, R134a,
SO2 in an adjusted quantity and concentration
and then supplied to the dosing furnace.
An accurate mixture ratio is even guaranteed
on fluctuating input pressure, what is an important
fact for ensuring safety.