Used Aluminum Furnaces
A number of specialized types furnaces are employed to melt metal in the die casting industry. These furnaces are refractory lined vessels that contain the material to be melted and furnaces create the energy to melt it. Furnace types include reverberatory, electric arc furnaces (EAF), induction furnaces, crucible and cupolas furnaces. Furnaces can be designed for firing with Furnace Oil, Light Diesel Oil, Gas and LPG using cold air, pre-heated combustion air from recuperator, regenerative combustion. Selection of the furnace is dependent on the alloy produced. For ferrous materials, EAFs, cupolas, and induction furnaces are commonly used.
Reverberatory type furnaces are used in the melting of all forms of solids, holding molten metal for temperature adjustment, alloy adjustment or metal treatment, and transport of molten metal for casting. These furnaces can be tailored to fit customer needs including metal circulation pumps, mass flow control, dual temperature control. Depending on the aluminum alloy being manufactured refractory linings can be all monolithic, brick linings or combination linings.
The process includes melting, refining the melt, adjusting the chemistry and transfer into a transport vessel. Refining is done to remove harmful elements from the molten metal to avoid defects. F may be used to separate the metal from slag. Degassers are used to eliminate dissolved gasses.