An electric arc furnace melts steel scrap with electric current. An arc burns between graphite electrodes and the charge, and its heat liquefies the scrap.
Design and function
The lower furnace shell is lined with refractory bricks; walls and roof consist of water-cooled panels. The roof swings aside so that the scrap bucket can be emptied. Three-phase furnaces work with three electrodes, direct-current furnaces usually with one.
Arms with clamps hold the electrodes, and hydraulics raise and lower them. The furnace transformer supplies very high currents through water-cooled cables. For tapping the vessel is tilted and the steel is run into the ladle.
Where it is used
Electric arc furnaces stand in electric steel plants that make structural steel, bars, wire or stainless steel from scrap. The plant is exposed to great heat, dust and vibration, so many parts are renewed on schedule.
Typical spare and wear parts
- Graphite electrodes and nipples
- Clamps, electrode arms and current tubes
- Water-cooled wall and roof panels
- Hydraulic cylinders, valves and hoses
- Refractory bricks and masses
What helps with a request
- Manufacturer and type of the machine or plant
- Designation, part number or drawing of the part
- Dimensions, material and a photo of the part or nameplate
- Quantity and required date
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