The phosphur content of steel at blowing end can reach predetermined level by proper control on the FeO content and basicity of slag.
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。
During the high rate heavy rail steel smelting, the upper basicity slag can be used during the LF refining, but it reduces suitable basicity of slag and refining time during the RH refining.
高速重轨钢的冶炼可以在LF精炼过程中采用较高的炉渣碱度，而在RH精炼过程中，应适当降低炉渣碱度和减少精炼时间。
These natural minerals with low melting point, accelerate the dissolution of lime, and form a slag of high basicity and good fluidity suitable for desulphurization.
这些天然复合矿物具有较低的熔点并且能满足流动性好的高碱度炉渣的去硫作用。
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