A Medium Frequency Induction Furnace uses electromagnetic induction to melt metals. Compared to traditional resistance furnaces and fuel furnaces, medium frequency furnaces offer faster heating, higher thermal efficiency, precise temperature control, and lower metal loss.
Working Principle
Based on Faraday's law of electromagnetic induction, when alternating current passes through an induction coil, it generates eddy currents in the metal charge inside, producing heat for heating and melting.
System components:
- Medium frequency power supply (converts mains frequency to MF)
- Induction coil (copper tube winding)
- Refractory lining (quartz sand ramming or prefabricated crucible)
- Cooling system (water-cooled cables, induction coil)
- Hydraulic tilting device
- Temperature measurement and control system
Key Advantages
| Advantage | Description |
|---|---|
| Fast heating | Power density 500-1000kW/ton |
| High thermal efficiency | Over 70% |
| Precise temperature control | Continuously adjustable power |
| Low metal loss | Less oxidation, higher yield |
| Eco-friendly | No combustion exhaust gas |
Applications
- Foundry: Ductile iron, gray iron melting
- Non-ferrous metals: Copper, aluminum alloy melting
- Precious metals: Gold, silver purification
- Forging: Billet induction heating
Our medium frequency furnaces feature full digital control technology, delivering high melting efficiency, low energy consumption, and easy operation.
