(东北大学 材料电磁过程教育部重点实验室， 沈阳 110004)
摘 要: 通过静态热模拟实验， 采用低熔点Sn-32%Pb-52%Bi(质量分数)合金作为钢液的模拟介质， 研究不同工艺参数下矩形电磁软接触连铸结晶器内弯月面行为的变化规律。 结果表明： 由于矩形电磁软接触结晶器本身的结构限制，其弯月面沿周向上的分布具有不均匀性； 随电源功率增大， 弯月面高度增大， 同时波动加剧； 实际生产中线圈应尽量靠近结晶器口部位置安装， 有利于提高弯月面高度和增强弯月面稳定性；浇注过程中， 应该使浇注液面尽可能的控制在线圈中心偏上位置； 当电源频率增大时， 应该同时适当的提高电流来保证软接触效果。
关键字: 电磁软接触； 连铸； 弯月面形状； 结晶器
（Key Laboratory of Electromagnetic Processing of Materials,
Ministry of Education, Northeastern University, Shenyang 110004, China）
Abstract: According to different technological parameters, meniscus shapes were investigated experimentally. A low-melting-point alloy of Sn-32%Pb-52%Bi was used to simulate the molten steel, and a high frequency magnetic field was applied for realizing soft contacting. The results show that the shape of meniscus is non-homogeneous because of the structure of the rectangular mold, and the height of meniscus will enlarge as increasing the power, and at the same time the meniscus fluctuate aggregately. The coil should be placed near the top of the mold and the initial free surface level should be placed in the middle of the coil in practice. The coil current should be enhanced to ensure the effects of soft-contact electromagnetic continuous casting (EMCC) when increasing the input frequency.
Key words: electromagnetic soft-contact; continuous casting; meniscus shape; mold
