多断面方圆坯同时在线连铸生产实践  

Practice of on-line continuous casting system for multi-section square/round billet

作　　者：李鹏超 解洪超 刘磊 孙嘉临 邢磊 LI Pengchao;XIE Hongchao;LIU Lei;SUN Jialin;XING lei(R&D Center,Linyi Iron and Steel Investment Group Special Steel Co.,Ltd.,Linyi 276616,Shandong,China)

机构地区：[1]临沂钢铁投资集团特钢有限公司研发中心,山东临沂276616

出　　处：《连铸》2024年第2期97-104,共8页Continuous Casting

摘　　要：为了研究多断面同时在线连铸生产技术,以10机10流方圆坯兼容连铸系统为基础,对中间包、结晶器及振动装置、二次冷却、拉矫机等连铸机关键设备进行设计;以断面规格为Ф180 mm、Ф210 mm、Ф250 mm、Ф310 mm圆坯和200 mm×200 mm方坯同时在线实践生产为主要研究对象,对中间包流场、浇铸温度、拉坯速度、二次冷却等生产主要工艺参数进行设计研究。生产实践结果表明对于优质低中碳钢,通过采用适当的设备及工艺参数,能够实现多断面方圆坯同时在线连铸生产;产品质量稳定可靠,完全能够满足铸坯生产质量要求,极大提高了企业市场灵活性。In order to study the production technology of multi-section simultaneous on-line continuous casting,the key equipment of continuous casting machine,such as tundish,mold and oscillating equipment,secondary cooling,withdrawal straightener,etc,are designed based on 10-machine 1o-flow square/round billet compatible continuous casting system.The main process parameters of multi-section production,such as tundish flow,casting temperature,casting speed and secondary cooling,were designed and researched,by section size of Ф180 mm,Ф210 mm,Ф250 mm,Ф310 mm round billet and 200 mm× 200 mm square billet simultaneous on-line practice.For high quality low and medium carbon steel,practice shows that multi-section square/round billet can be produced simultaneously by on-line continuous casting with appropriate equipment and process parameters.The production quality is stable and reliable,which can fully meet the requirements of casting slab production quality and greatly improves the enterprisemarket flexibility.

关 键 词：多断面 方圆坯 同时在线连铸 浇铸温度 拉坯速度 二次冷却 

分 类 号：TF777[冶金工程—钢铁冶金]