Analysis on Erosion Mechanism of Submerged Entry Nozzle and Countermeasures in Continuous Casting

摘要：

In the paper, the developmental status of submerged entry nozzle (SEN) in continuous casting were overviewed, and the corrosion mechanism of Al2O3-C based SEN and Al2O3-C/ZrO2-C based SEN were described. According to the case of occurred perforation and corroded rupture of SEN in continuous casting, some technologies, such as adopting tundish fire by underside ventilation technology, improved materials of slag line for SEN, increasing the thickness of slag line and introducing double slag lines etc, were adopted. Accordingly, the phenomena of perforation and rupture due to corrosion of SEN were disappeared basically, and the continuous casting heats of single tundish were increased at a certain degree, and the continuous casting production was met.

关键词： continuous casting submerged entry nozzle corrosion mechanism

作者: YE Tu-ming YI Wei-dong XIAO Wei-jun WANG Guo-ping PAN Yan-hua

作者单位: No.1 Steelmaking Plant of WISCO, Wuhan 430083, China

会议类型: 国际会议

会议名称: 第四届发展中国国家连铸国际会议(The 4th International Conference on Continues Casting of Steel in Developing Countries)

会议地点: 北京

会议语种:英文

页码: 669-674

在线出版日期: 2008-11-04（万方平台首次上网日期，不代表论文的发表时间）