戴永刚. Effect of Refining Slag Ingredient on Content and Morphology of Inclusions in Sulfur Free Cutting Steel[J]. Special Steel, 2016, 37(1): 60-63.DOI:
The effect of control of 50 t LF refining slag (FeO)
(MnO)
/R
( CaO)/[(Al
2
O
3
) (SiO
2
)
]
and (S) on [0
]
index
sulfur partition ratio and Mn/S has been tested and analyzed. Results show that as (FeO + MnO)= 12%
basicity R 1.5 〜2.0
(CaO)/[ (A1
2
O
3
) (SiO
2
)
]
=1.5 ~2.0
average sulfur partition ratio £s 4.6
Mn/S =4.3 ~4.7
the as-cast inclusions in steel is spheroid I series sulfide and partial along grain-boundary distributed spheroid sulfide
and the B and C series inclusions do not found in rolled products to get better control of oxides inclusions in steel and metallurgy effect of low desulphurization ratio.