Channel induction furnaces

The channel induction furnace consists of a refractory lined steel shell which contains the molten metal.

Attached to the steel shell and connected by a flange is an induction unit which forms the melting component of the furnace.

The induction unit consists of an magnetic special iron core in the form of a ring around which a primary induction coil is wound. This assembly forms a simple transformer in which the molten metal loops comprises the secondary component.

The heat generated within the loop causes the metal to circulate into the main well of the furnace. The circulation of the molten metal effects a useful stirring action in the melt.

Channel induction furnaces are commonly used for melting low melting point alloys and or as a holding and superheating unit for higher melting point alloys such as cast iron. Channel induction furnaces can be used as holders for metal melted off peak in coreless induction, channel units thereby reducing total melting costs by avoiding peak demand charges.