Crucible furnaces are designed for melting and keeping die-casting Aluminium alloys warm. High quality insulation is the reason for low power consumption which results in low operational costs. The easy-to-move insulated cover provides good access to the melting bath and therefore simple maintenance is possible. Standardized graphite crucibles enable an indirect melting of the Aluminium alloys. Highly efficient and long-lasting heating tapes, which are integrated in the furnace combustion, heat the furnace. Changing of heating is easy done. Activation of heating elements occurs via solid state relays, which keep the temperature of the melting bath free from overheating. An impeller can be mounted in the melt to treat the bath ensuring that molten bath will be degassed and the density index will be improved again.
The dosing system consists mainly of a vacuum ceramic container, an evacuation device to draw in melt as well as a special closing mechanism at the suction point. The vacuum container is made of ceramic with the benefit of: non-wettable, thermal shock resistant and strong. The mechanical movement occurs via a servo-controlled lifting or pivoting device.
The system shows following advantages:
Drawing in of melt below bath level – no oxide
Filling of container by sucking in melt – degassing
Transfer of melt without air admission – no oxide
Transfer of melt into a closed ceramic container – low drop of temperature
High dosing precision through integrated, precise quantity measurement