Melting Furnaces

1)      Gray cast iron :

a)      Cupola

b)      Air furnace (or reverbratory furnace)

c)      Rotary furnace

d)     Electric furnace

2)      Steel

a)      Open hearth furnace

b)      Electric furnace

-Arc furnace

- High frequency induction furnace

           c) Converter

3) Non-ferrous metals:

a)  Crucible furnace (Al, Cu)

          - Pit type

          - Tilting type

          -Non tilting type or bale out type

          - Electric resistance type (Cu)

b) Pot furnace (fuel fired) (Mg and Al)

          - Stationary

          - Tilting

c) Reverbratory furnaces (fuel fired) (Al. Cu)

          - Stationary

          -Tilting

d) Rotary furnace

          - Fuel fired

          - Electrically heated

e) Induction furnace (Al, Cu)

          -Low frequency

          - High frequency

f) Electric arc furnace (Cu)