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The activity of MnO in blast furnace-typeslags CaO-SiO_2,CaO-SiO_2-Al_2O_3 andCaO-SiO_2-Al_2O_3-MgO at 1500℃ has been measuredin a graphite crucible with Ag and Sn as solventmetals.The agreement between the values ofγMnO obtained from the experimental resultsusing Ag and Sn separately as the solvent metalis excellent.The major errors in the previousstudies have proved to be the failure to takeinto account the exchange reactions involvingSi and Mn and insufficient time for theestablishment of equilibrium between slag andsolvent metal.A new method is suggested for determiningthe activities of elements in metallic solutions.The method involves the separate equilibrationof two metallic alloys,one of which containsthe component of interest at a known activity,with a single slag. 相似文献
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主要介绍技术中心LIMS网上预约系统的需求分析及设计目标,具体的开发设计、代码实现、系统配置,以及系统后期功能模型展望。 相似文献
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运用数理统计手段分析了硅钢板电磁性能影响因子的作用。对转炉冶炼→连铸→中轧开坯→热轧薄板→成品退火的生产工艺,探讨了硅钢适合的成分配比,轧后急冷能提高硅钢板的电磁性能终轧后入水板温不宜超过710℃。 相似文献
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杭钢网站在windows操作系统下使用ASP+SQL Server组合建设,实现了网站信息的动态发布,取得了良好的效果。 相似文献
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