A casting furnace, more commonly referred to as a furnace, is a device used to heat and meltmetal ore to remove ganque, primarily in iron and steel production. The heat energy to fuel afurnace may be supplied directly by fuel combustion, by electricity such as the electric arcfurnace, or through induction heating in induction furnaces, There are several different types offurnaces used in metallurgy to work with specific metal and ores.induction heating is the process of heating electrically conductive materials like metals byelectromagnetic induction, through heat transfer passing through an induction coil that createsan electromagnetic field within the coil to melt down steel, copper, brass, qraphite, qold, silver.aluminum, and carbide, An induction heater consists of an electromaanet and an electronicoscillator that passes a high-freguency alternating current (AC) through the electromagnet. Therapidly alternating magnetic field penetrates the object, generating electric currents inside theconductor, called eddy currents, The eddy currents flow throuah the resistance of the materiaand heat it by loule heating, In ferromaanetic and ferrimaonetic materials, such as iron, heatalso is generated by magnetic hysteresis losses. The frequency of the electric current used fornduction heating depends on the object size, material type, coupling (between the work coiland the object to be heated) and the penetration depth.