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Difference in BOF Slag Splashing in US and China

Journal of Iron and Steel Research International 2001年第1期8卷 1-5页

作者： CHEN Wei-qing kent peaslee University of Science and Technology Beijing University of Missouri-Rolla

Some differences in slag splashing between BOF steel works in US and China were investigated. The slag composition,melting point, and mineralogical phases of final slags from both countries were studied. The control o... 详细信息

关键词： slag splashing BOF melting point mineralogical phases superheat

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Behavior of MgO·Al_2O_3 Based Inclusions in Alloy Steel During Refining Process

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Journal of Iron and Steel Research International 2010年第7期17卷 1-6页

作者： YANG Shu-feng LI Jing-she ZHANG Li-feng kent peaslee WANG Zai-fei School of Metallurgical and Ecological Engineering University of Science and Technology Beijing Beijing 1000.83 China Department of Materials Science and Engineering Missouri University of Science and Technology Rolla 65401 M. issouri USA

The transformation of MgO· Al2O based inclusions in alloy steel during refining has been studied by in- dustrial trials. Besides Factsage software is used to sttidy the formation and modification of spinel inclusions in alloy steel using calcium treatment during refining process. The results show that the transformation sequence of inclu- sions is：MgO· Al2O→CaO-Al2O3-MgO complex inclusions--→MgO· Al2O, and under present experimental con- dition, in order to avoid forming MgO· Al2O inclusions the content of dissolved Ca in the molten steel has to reach 1 × 10-6. Also the results show that when more calcium was added to molten steel, the content of Alz 03 and MgO will be lower. Besides, increasing the content of CaO in the inclusions will increase even if tlae content of SiO2 changes little.

关键词： alloy steel non-metallic inclusion MgO· Al2O spinel thermodynamics

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