模铸不锈钢冶炼过程中夹杂物的来源分析
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摘要
不锈钢中大型夹杂物(>1.5级)严重影响不锈钢的力学及加工性能,对于电炉(EAF)、氩氧精炼炉(AOD)、钢包精炼炉(LF)冶炼工艺,通过现场大生产实验及分析,冶炼过程中大型夹杂物的来源主要有三大来源:深脱氧过程中加入铝而形成的氧化铝,AOD炉渣的卷入,AOD炉衬的侵蚀。
The large size inclusion(>1.5 grade) in stainless steel have a strong impact on mechanical property and processing properties of stainless steel, there are three major sources of large size inclusion in smelting process through on-site mass production experiment and analysis for the smelting process of electric furnace(EAF), argon oxygen refining furnace(AOD), ladle refining furnace(LF), the major resources are: alumina generated by aluminum feeding in the process of deep deoxidization, involved ADO slag, and the corrosion of AOD furnace liner.
The large size inclusion(>1.5 grade) in stainless steel have a strong impact on mechanical property and processing properties of stainless steel, there are three major sources of large size inclusion in smelting process through on-site mass production experiment and analysis for the smelting process of electric furnace(EAF), argon oxygen refining furnace(AOD), ladle refining furnace(LF), the major resources are: alumina generated by aluminum feeding in the process of deep deoxidization, involved ADO slag, and the corrosion of AOD furnace liner.
引文
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[4]Joo Hyun PARK,Hidekazu TODOROKI,Control of MgO·Al2O3Spinel Inclusions in Stainless Steels,ISIJ international,50(2010),1333-1346
[5]Zhiyin DENG and Miaoyong ZHU,Deoxidation Mechanism of AlKilled Steel during Industrial Refining Process,ISIJ international,54(2014),1498-1506
[2]Robert ERIKSSON,Lage JONSSON and Pr G JNSSON,Effect of Entrance Nozzle Design on the Fluid Flow in an Ingot Mold during Filling,ISIJ international,44(2004):1358-1365
[3]Hideaki SUITO,Hajime INOUE,RyoINOUE,Aluminium-Oxygen Liquid lron Equilibrium between CaO-Al203 Melts and liquid iron,ISIJ international,31(1991):1381-1388
[4]Joo Hyun PARK,Hidekazu TODOROKI,Control of MgO·Al2O3Spinel Inclusions in Stainless Steels,ISIJ international,50(2010),1333-1346
[5]Zhiyin DENG and Miaoyong ZHU,Deoxidation Mechanism of AlKilled Steel during Industrial Refining Process,ISIJ international,54(2014),1498-1506