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7 Operation
7.1 Safety advices for operation
Caution!
Examine all consumables, insulations and hoses before switching
on. Check for damages and cleanliness, especially crucible and
glass shield. Operate the system only when it’s free of damages.
Warning!
Risk of burning on hot surfaces and hot metal
(until ~ 1300 °C). Wear always personal protective
equipment when you work with the machine.
Utmost caution during using graphite crucibles and
graphite moulds. The heat of these parts is only visible
when the temperatures are over 500 °C.
Danger!
Risk of burns. If metal is melted without the supply of protective gas,
can cause a flash fire or explosion when opening the bell.
Melt at temperatures above 500 °C always with protective gas. Use
as a protective gas exclusively argon or nitrogen.
Attention!
At crucible temperatures over 100 °C the cooling water supply must
be switched on. If it is not turned on, the inductor will be destroyed. If
cooling water supply fails, the heating system immediately is turned
off. Inspect the system for damage before putting back into operation
again.
7.2 Changing casting parts
Attention!
Switch off the machine at mains switch, when you change consum-
ables, like e.g. crucible.
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