E
Electric Furnace Process
The process of making steel from steel scrap or from steel scrap and iron ore with limestone as a flux in a furnace, usually of the rocking or tilting type, built of steel plates and lined with fire-brick or other refractory materials, in which the source of heat is a low voltage electric current of high amperage. The furnace lining may be either acid or basic.
Elevation (of curves)
Known as superelevation. The vertical distance between the outer rail and the inner rail.
End Hardening
Heat treatment of the top portion of the heads of rails at the ends to minimize rail batter.
Engine Burn Fracture
A progressive fracture originating in spots where driving wheels have slipped on top of the railhead. In developing downward they frequently resemble compound or transverse fissures.
The process of making steel from steel scrap or from steel scrap and iron ore with limestone as a flux in a furnace, usually of the rocking or tilting type, built of steel plates and lined with fire-brick or other refractory materials, in which the source of heat is a low voltage electric current of high amperage. The furnace lining may be either acid or basic.
Elevation (of curves)
Known as superelevation. The vertical distance between the outer rail and the inner rail.
End Hardening
Heat treatment of the top portion of the heads of rails at the ends to minimize rail batter.
Engine Burn Fracture
A progressive fracture originating in spots where driving wheels have slipped on top of the railhead. In developing downward they frequently resemble compound or transverse fissures.
