金属学报  1977, Vol. 13 Issue (3): 202-257

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用示踪原子研究稀土在铁液中的去向及其与耐火材料的作用

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北京钢铁学院物化教研室同位素研究组

AN INVESTIGATION OF BEHAVIOUR OF CERIUM IN MOLTEN IRON AND ITS REACTION ON REFRACTORIES BY MEANS OF TRACER

Res. Gp. of Isotope; Peking Institute of Iron and Steel Technology

No Author. 用示踪原子研究稀土在铁液中的去向及其与耐火材料的作用[J]. 金属学报, 1977, 13(3): 202-257.
. AN INVESTIGATION OF BEHAVIOUR OF CERIUM IN MOLTEN IRON AND ITS REACTION ON REFRACTORIES BY MEANS OF TRACER[J]. Acta Metall Sin, 1977, 13(3): 202-257.

摘要 参考文献 相关文章 Metrics 全文: PDF(3673 KB)   摘要: 用放射性测量及自射线照相的方法研究了稀土元素在工业纯铁液中的去向及其与多种耐火材料的作用。实验证明: 在炼钢温度下,金属中的铈及渣中氧化铈的挥发均甚微。 在炼钢温度下钢液中的铈与粘土砖、高铝砖、镁砖、铝镁砖、硅砖、刚玉,电熔氧化镁、氧化锆等多种耐火材料均有不同程度的作用。稀土元素与不同耐火材料作用的机理不仅决定于耐火材料的化学性质,而且也取决于其物理性质。 用自射线照相方法发现,稀土与耐火材料作用产物会剥落而进入钢液形成稀土夹杂物。稀土与耐火材料作用产物及钢中稀土夹杂物在上浮过程中有相当一部分并未上浮至液面而是粘附于坩埚壁上。 对稀土钢浇铸时盛钢桶水口结瘤、汤道堵塞以及稀土加入钢液后的去向等问题进行了初步分析。 Abstract：The behaviour of rare earth elements, taking cerium as representative, in moltencommercial pure iron and their reactions on refractories have been inveshgated bymeans of autoradiography and radioassay. Results show that under steelmaking tem-peratures the evaporation of cerium from molten iron or cerium oxide from slag isvery slight, and cerium in molten iron reacts in different degrees on crucibles made offireclay, high-alumina, magnesia, alumina-magnesia, silica, as well as alundum, electro-fused-magnesia and zirconia. These erosive reactions are affected not only by the chem-ical constituents but also by the physical properties of refractories. It was observed byautoradiography that the erosive reaction products may spall away then to form rareearth inclusions in iron consequently. A considerable part of these reaction productsand the rare earth inclusions do not float to the surface of liquid metal, and may adhereto the crucible wall. The blockage on laddle nozzle and runner during teeming has beenalso discussed. 收稿日期: 1977-03-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1977/V13/I3/202 [1] 柯若儒、廖安棣、刘宝庭、陈仁霖、韩其勇、李福桑,稀土应用论文汇编(基础研究部分),1965 第40页. No related articles found! Viewed Full text Abstract Cited   Shared      Discussed