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Viscosities of Blast Furnace Slags

机译：高炉渣的粘度

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Granulated iron blast furnace slags have been collected from ironmaking plants in Shougang.The viscosities of the industrial slags have been measured using the custom designed rotating bob apparatus which enables control of the gas atmosphere and rapid quenching of the samples on completion of the experiment.The experiments were carried out using Mo bob and crucible under ultra-high purity Ar flow.The microstructures and phase compositions in the quenched slag samples after the viscosity measurements were determined by Electron Probe X-ray Microanalysis (EPMA).The major chemical components of the iron blast furnace slag are A12 O3,CaO,MgO and SiO2 that account for over 95wt％.Corresponding synthetic slags made from these pure chemicals have been used to evaluate effects of minor components such as sulphur,MnO,TiO2 and FeO on viscosity of the iron blast furnace slags.It was found that the viscosities of the synthetic slags are significantly higher than that of the corresponding industrial slags.The difference in viscosity between industrial slags and synthetic slags will provide useful indications to apply the results of the synthetic slags to the real iron blast furnace slags.The present measurements are compared with available literature data and model predictions.
机译：从首钢的炼铁厂收集了颗粒状的高炉铁渣，并使用定制设计的旋转鲍勃装置测量了工业渣的粘度，该装置可以控制气体气氛并在实验完成后快速淬火样品。使用Mo鲍勃和坩埚在超高纯Ar流量下进行了实验。通过电子探针X射线显微分析（EPMA）测定了粘度测量后的淬火渣样品中的微观结构和相组成。高炉渣中Al2O3，CaO，MgO和SiO2含量占95％以上。由这些纯化学物质制成的相应合成渣已用于评估硫，MnO，TiO2和FeO等微量成分对铁水粘度的影响。发现高炉渣的粘度显着高于相应行业的粘度工业炉渣与合成炉渣之间的粘度差异将为将合成炉渣的结果应用于实际高炉炉渣提供有用的指示，并将目前的测量结果与现有文献数据和模型预测进行比较。

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