首页|优化精炼渣去除50Cr5MoV钢中Al2O3夹杂物的实验室研究

优化精炼渣去除50Cr5MoV钢中Al2O3夹杂物的实验室研究

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为了减少某钢厂EBT-LF-VD-VC工艺生产的50Cr5MoV轧辊钢中的Al2O夹杂物,在实验室条件下,对LF精炼渣进行优化,研究了不同w(CaO) /w(Al2O3)比值的LF精炼渣去除夹杂的能力.结果表明:当w(CaO)=50 ％～55％,w(Al2O3) =25 ％～30％,即w(CaO)/w(Al2 O3)=1.5～2.0时,优化后的精炼渣不仅能够去除大量的铝脱氧产物Al2O3,而且残余夹杂基本都转变为直径1～5 μm且具有塑性的CaO-MgO-Al2 O3球形复合夹杂.
Laboratory study on reducing Al2O3 inclusions in 50Cr5MoV steel by optimized refining slag
To reduce the Al2O3 inclusions in 50Cr5MoV roller steel produced through EBT-LF-VD -VC process in a steelmaking plant,the LF refining slag was optimized.The influences of optimized slag with different w (CaO)/w (Al2O3) ratios on reducing inclusions were investigated in the laboratory.The results showed that,when w(CaO) =50 ％-55 ％,w(Al2O3) =25 ％-30 ％ and w(CaO)/w(Al2O3) =1.5-2.0,the slag could not only reduce massive A12O3coming from aluminium deoxidation,but also change the rest into plastic spherical CaO-MgO-Al2O3 compound inclusions whose diameters were 1-5 μm.

50Cr5MoV roller steelLF refiningAl2O3 inclusionpre-molten slagremoving

叶明峰、吴光亮

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中南大学资源加工与生物工程学院,湖南长沙410083

50Cr5MoV轧辊钢 LF精炼 Al2O3夹杂物 预熔渣 去除

2017

钢铁研究
武汉钢铁（集团）公司

钢铁研究

CSTPCD
影响因子：0.314
ISSN：1001-1447
年,卷(期)：2017.45(2)
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