Aluminum Melting Furnace

Aluminum furnace is designed to serve various industrial purposes. It consist of various elements like Fe, Al, Cr, which are supported by numerous other equipments for better heat distribution of heat and longer lifetime of the element. These aluminum melting furnace are capable of any type of alloys. These furnaces are well insulated that allows a better heat and energy distribution, which improves the crucible life expectancy. The aluminum furnace are available in various size and capacities.

Features
Common features of the Aluminum Furnace are:

• For melting aluminum there are different Fe, Al, Cr heating elements.
• The furnace are well insulated.
• The heating is uniform.
• Some Aluminum Furnace are consist of digital indicating controller.
• The aluminum melting furnace are easy to install, operate, and manipulate.
• Crucible can be easy replaced.
• Normally the electrical aluminum furnace also consist of Swing top cover with lateral displacement

Types
Based on the types of heating used by Aluminum furnace, they are classified into two types- Electric Aluminum furnace and Gas fired furnace.

Electrical Aluminum Furnace
An electrical aluminum melting furnace consist of a vessel for supporting molten aluminum and a roof and upper wall structure cooperating with side walls of the vessel to define a heating chamber above the molten aluminum. Large number of unshielded resistance heating elements are supported by the roof and upper wall structure above the molten aluminum.

There is a charging well which is submerged and from where molten aluminum has access to a charging well to which unmelted aluminum is periodically charged without danger of splashing molten aluminum upon the heating elements.

The chamber from where heat is conducted is heating chamber. Heat conducted through the body of molten aluminum residing in the vessel is utilized to melt in the charging well the aluminum charged thereto.

The melted aluminum in the charging well flows through the heating chamber and through a submerged opening to a hot metal well from which hot metal may be withdrawn by any of numerous techniques.

The arrangement of the heating chamber is aligned in such a way that that helps in the preservation of an oxide skin at the surface of the molten aluminum residing within the heating chamber.

Gas fired furnace
Gas fired aluminum furnace produces a flat flame pattern that promotes even heating by radiation from the roof and eliminates flame impingement on the bath, minimizing metal losses. The firing is proportional and heating is controlled which is distributed homogeneously. For proportional firing for better temperature control and maximum energy savings A variable speed blower is used. The unique burner and blower combination eliminate metal temperature "creep-up" at low fire and still provide maximum metal temperature recovery at high fire. The furnace is easy to stall because the majority of the combustion train and the junction box are mounted on the top of the roof which free up valuable floor space. A pneumatic roof opening mechanism is included providing easy access to the heating chamber for fluxing and cleaning.

Applications

• Metal casting
• Foundries
• Alloy Melting
• Refining of various materials etc.