The phosphur content of steel at blowing end can reach predetermined level by proper control on the FeO content and basicityofslag.
适当控制炉渣的氧化铁和碱度可使吹炼终点磷含量达到预定值。
2
During the high rate heavy rail steel smelting, the upper basicityslag can be used during the LF refining, but it reduces suitable basicityofslag and refining time during the RH refining.
These natural minerals with low melting point, accelerate the dissolution of lime, and form a slagof high basicity and good fluidity suitable for desulphurization.