梁娜, 吴德发, 翟正龙, et al. Effect of Slag Ingredient on Melting Point of CaO-SiO2 -Al2O3 -MgO Refining Slag Series for Gear Steel 28MnCr5 Steelmaking[J]. Special Steel, 2012, 33(4): 10-12.
梁娜, 吴德发, 翟正龙, et al. Effect of Slag Ingredient on Melting Point of CaO-SiO2 -Al2O3 -MgO Refining Slag Series for Gear Steel 28MnCr5 Steelmaking[J]. Special Steel, 2012, 33(4): 10-12.DOI:
Based on the process of 50 t EAF-LF-VD for gear steel 28MnCr5 (/% : 0. 28C
0. 09Si
0. 70Mn
0. 015P
0. 027S
0. 95Cr)
the effect of proportion of each ingredient in slag on melting point of CaO-SiO
2
-Al
2
O
3
-MgO refining slag series has been studied by using thermodynamic calculation software FactSage
to get optimum proportion of ingredients in order to control the inclusions in low melting point region and remove out. Results show that as (CaO) / ( SiO
2
) W 1
the percentage of low melting point region to whole phase diagram area is larger and as CaO content in slag ( CaO) is 30%
the percentage of low melting point region to whole phase diagram area is maximum i. e. 53. 2% ; the op
timum ingredient of quaternary refining slag series is (/%) 30CaO-30SiO2-25Al