Understanding how energy is lost during the operation of an intermediate frequency induction furnace is critical for improving melting efficiency and reducing operating costs. In this article, we’ll explore the key areas of energy loss and how you can optimize your steel melting process.
In an induction furnace, a rapidly alternating magnetic field induces eddy currents in metal scrap. These currents generate heat due to the resistance of the material, ultimately melting the charge inside the crucible. This process is energy-intensive, and not all of the electrical input is used efficiently—some is lost in various forms throughout the melting cycle.
Energy losses in electric steel melting furnaces can be grouped into five main categories:
Among these, heat loss accounts for the largest portion of inefficiency.
Since the furnace must compensate for all these losses, longer melting times mean more energy is consumed and overall furnace efficiency drops.
Certain operational and material factors can lead to higher energy usage:
One of the most overlooked contributors to energy waste is prolonged heating time, especially during inefficient production cycles. This not only increases radiation and conduction losses but may also degrade refractory linings faster.
The most important factor in reducing energy loss is maximizing furnace utilization. Operating your induction furnace at high capacity with well-prepared input materials leads to shorter melt cycles and higher productivity. Other best practices include:
At Luoyang Judian, we specialize in manufacturing intermediate frequency induction furnaces engineered for high efficiency and low energy consumption. Our designs emphasize optimal coil performance, reduced power loss, and stable melting cycles—ideal for small and medium-sized steel plants worldwide.
Follow Luoyang Judian to learn more about energy-saving tips, steel melting technology, and how to select the right induction furnace for your operation.
Induction billet furnaces can heat billets to temperatures ranging from room temperature to over 1200°C.
After the Slab is pulled out from the continuous casting machine,Surface temperature is 750 ~ 850℃.