摘要
浇注过程中连铸水口表面存在自生电场,由此所引起的电润湿、电化学反应等界面作用严重影响水口结瘤堵塞。在连铸平台进行了工业试验,研究结果表明无电场处理的水口内腔结瘤物厚度可达10mm,吐钢孔堵塞严重;电脉冲处理后的水口内腔平滑,吐钢孔无明显结瘤物。电脉冲处理可减弱或消除水口表面自生电场引起的界面作用,从而有效抑制水口结瘤,延长水口使用寿命。
The spontaneous electric field exists on the surface of the submerged entry nozzle during the pouring process,which will cause interface effects such as electrowetting and electrochemical reaction to seriously affect the clogging of the nozzle.Industrial tests were carried out on the continuous casting platform,and the results showed that the thickness of clogging in the inner cavity of the nozzle can reach 10 mm without electric field treatment,and the tapping hole is seriously blocked;After the electric pulse treatment,the inner cavity of the nozzle is smooth,and there are no obvious clogging in the tapping hole.The interface effect caused by the spontaneous electric field on the surface of the nozzle can be weakened or eliminated by electrical pulse treatment so that the clogging of the nozzle is effectively suppressed and the service life of the nozzle is extended.
作者
杨鑫
张媛媛
何志军
张军红
湛文龙
于景坤
YANG Xin;ZHANG Yuan-yuan;HE Zhi-Jun;ZHANG Jun-hong;ZHAN Wen-long;YU Jing-kun(School of Materials and Metallurgy,University of Science and Technology Liaoning,Anshan 114051,Liaoning,China;School of Metallurgy,Northeastern University,Shenyang 110819,Liaoning,China)
出处
《钢铁》
CAS
CSCD
北大核心
2021年第4期52-56,共5页
Iron and Steel
基金
国家自然科学基金资助项目(51874171,51974154)。
关键词
高效连铸
水口结瘤
外加电场
电润湿
界面作用
efficient continuous casting
nozzle clogging
applied electric field
electrowetting
interfacial interactions
