alucover

• First the crucible is heated to redness
• Then half of the charge is added with continued heating.
• When the charge becomes sluggish half quantity of total Alucover is sprinkled on it.
• The Alucover melt & forms a liquid protective cover on the melting charge.
• The balance of the charge is slowly & continuously added without disturbing the liquid cover.
• When entire charge melts & achives the required temperature, balance half of Alucover is added & stirred well in to melt. The resultant red glowing powdery dross is skimmed & the metal is ready for further operations.