Effect of interfacial reaction behaviour on the clogging of SEN in the continuous casting of bearing steel containing rare earth elements
Effect of interfacial reaction behaviour on the clogging of SEN in the continuous casting of bearing steel containing rare earth elements
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稀土轴承钢连铸界面反应行为对SEN堵塞的影响
DOI：
10.1016/j.jallcom.2019.04.010
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发表时间：
2019-07
影响因子：
6.2
通讯作者：
Lei Yuan
中科院分区：
文献类型：
--
作者：
Chen Tian;Jingkun Yu;Endong Jin;Tianpeng Wen;Danbin Jia;Zhenli Liu;Paixian Fu;Lei Yuan
对稀土轴承钢连铸过程中浸入式水口堵塞问题进行了研究。详细分析了钢水浇注过程中水口结瘤的成分、形成过程、生长方式及产生原因。结果表明，浸入式水口内壁石墨溶解过程改善了钢水与耐火材料之间的润湿性，为稀土及其化合物在水口内壁的反应和粘附提供了便利条件;水口内壁不同部位的堵塞物成分不同。在钢水和耐火材料之间的界面处的主要成分由铈铝化合物组成，而SEN的外壁主要由铈硫化物组成。随着堵塞的增长，浸入式水口内壁上的层流界面层会逐渐增加，从而进一步加速堵塞，最终影响连铸。因此，防止稀土钢浸入式水口结瘤主要是通过抑制初期结瘤的形成和抑制水口材料的反应来实现的。
The problem of the clogging of submerged entry nozzle (SEN) in the continuous casting of bearing steel containing rare earth (RE) elements is studied in this paper. The composition, formation process, growth mode and cause of the clogging at the interface of the molten steel and the refractory of SEN were analysed in detail during the process of molten steel casting. The results showed that the graphite dissolution process on the inner wall of SEN can improve the wettability between the molten steel and the refractories, which provides convenient conditions for the reaction and adhesion of RE and its compounds on the inner wall of the SEN. Clogging compounds at different locations had different compositions. The main compositions at the interface between the molten steel and the refractories were consisting of cerium aluminate compounds, while the outer walls of the SEN mostly consisted of cerium sulfide compounds. With the growth of clogging, the laminar flow interface layer on the inner wall of the SEN will gradually increase, which further accelerates the clogging, and ultimately affects the continuous casting. Therefore, the prevention of clogging in the SEN of RE steel can be mainly carried out by inhibiting the formation of initial clogging in the early stages and by inhibiting the reaction of the SEN materials.
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影响因子：
10.9
作者：
Lin Qin;Ye Wen;Du Yuansheng
通讯作者：
Lin Qin;Ye Wen;Du Yuansheng
影响因子：
1.8
作者：
Y. Tsukaguchi;H. Hayashi;Hidenori Kurimoto;S. Yokoya;K. Marukawa;Toshihiro Tanaka
通讯作者：
Y. Tsukaguchi;H. Hayashi;Hidenori Kurimoto;S. Yokoya;K. Marukawa;Toshihiro Tanaka
影响因子：
2.1
作者：
Jiang Zhong-kuai
通讯作者：
Jiang Zhong-kuai
影响因子：
8.4
作者：
Hongling Liu;Chengjun Liu;M. Jiang
通讯作者：
Hongling Liu;Chengjun Liu;M. Jiang
DOI：
10.1007/bf02652708
发表时间：
1976-01-01
期刊：
METALLURGICAL TRANSACTIONS B-PROCESS METALLURGY
影响因子：
--
作者：
VAHED, A;KAY, DAR
通讯作者：
KAY, DAR