Is AOD furnace used in non-ferrous alloy?

Answer 1

AOD furnace is not used in non-ferrous alloys.

AOD = Argon-oxygen process.

- AOD process is a widely used method for making quality steel.

The charge is melted in an electric furnace and after a slag off it is transferred to the AOD vessel for refining, alloying and final finishing.

- The tuyers arranged in a semi circle around the side near the bottom blow process gasses inside the AOD vessel.

- The slag is reduced and final additions are made after a preliminary analysis.

- The vessel is turned down for sampling, temperature measurement, slag off and tapping and the heat is poured into the ladle for further use.

In AOD process there is continual thorough stirring of heat.

- The method provides a very close control of heat chemistry.

- Computer control ensures repetitive uniform melting and refining.

- AOD refining reduces the hydrogen content to about half the value in electric furnace melting.

- There is minimal loss of chromium to the slag.