| Effects of Refractories on the Total Oxygen Content and Inclusions in the IF Steel |
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| 作者姓名： | LIHuili LINan WEIYaowu |
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| 作者单位： | HubeiProvinceKeyLaboratoryofRefractoriesandCeramics,WuhanUniversityofScienceandTechnology,Wuhan,Hubei,P.R.China,430081. |
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| 基金项目： | The project is sponsored by China National Nature Science Fund and Bao Steel,Shanghai(50174041) |
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| 摘 要： | The effects of refractories of quarz-corundum consisting of 45 mass% quartz and 55 mass% corundum,fused corundum and fused magnesia on the total axygen content(TOC) and the composition of inclusions in intersitital free(IF) steel were studied,3 mass% microsilica was added into the three refractories as binder.The refractories were shaped as lining of the graphite crucible by castable method IF steel was placed in the crucibles,then they were heated at 1600℃ for 90min and 45min respectively.Oxygen contents of the steel samples were obtained by axygen determinator.Inclusions were analyzed by SEM and EDS.The results show that the TOC of steel increase with ncrease of Index of Oxygen Potetial (IOP) of the refractories.The steel sample coped with MgO refractories having the lowest IOP has the lowest TOC.
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| 关 键 词： | 耐火材料 空隙自由钢 氧含量 夹杂物 |
Effects of Refractories on the Total Oxygen Content and Inclusions in the IF Steel |
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| LIHuili LINan WEIYaowu.Effects of Refractories on the Total Oxygen Content and Inclusions in the IF Steel[J].China’s Refractories,2003,12(3):30-33. |
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| Authors: | Li Huili LI Nan WEI Yaowu |
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| Abstract: | The effects of refractories of quartz-corundun consisting of 45 mass % quartz and 55 mass % corundum , fused corundum and fused magnesia on the total axygen content ( TOC ) and the composition of inclusions in interstitial free( IF) steel were studied.3 mass% microsilica was added into the three refractories as binder. The refractories were shaped as lining of the graphite crucible by castable method .IF steel was placed in the crucibles,then they were heated at 1600℃ for 90 min and 45 min respectively.Oxygen contents of the steel samples were obtained by axygen determinator . Inclutsions were analyzed by SEM and EDS.The results show that the TOC of steel increased with increase of Index of Oxygen Potential ( IOP ) of the refractories . The steel sample coped with MgO refractories having the lowest IOP has the lowest TOC. |
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| Keywords: | Refractories Interstitial free steel Total |
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