The role of converter slag in steel making:

(1) removal of P and S in molten metal;

(2) reduction of erosion of refractory materials;

(3) creation of favorable conditions for decarburization of dispersed metal droplets;

(4) Prevent a large amount of heat loss, prevent the oxygen flow from strongly impacting the molten pool; reduce metal splashing;

(5) prevent the molten steel from absorbing harmful gases;

(6) adsorb foreign and intrinsic fine non-metallic inclusions.