摘要
高效连铸的核心是高拉速,高拉速的实现是一项集工艺技术、装备技术与生产操作技术于一体的综合性技术。本文介绍了高速连铸控制技术难点及技术研究方向,重点分析了不同坯型的高速连铸技术,包括高效强冷结晶器和结晶器振动优化、结晶器内钢液流动和液面波动控制、高速保护渣技术、高速连铸漏钢预报技术以及二冷动态控制等。未来,“立体多锥度”结晶器、变速冷却结晶器、非牛顿流体保护渣、强力均匀高效二冷技术、高速连铸智能辅助装备等更多先进技术的投入应用,将推动铸机拉速向着更高的方向发展。
The core of high efficiency continuous casting is high casting speed,which is a comprehensive integrating process including technology,equipment technology and production operation technology.This paper introduces the technical difficulties and research direction of high-speed continuous casting control technology,and focuses on the analysis of high-speed continuous casting technology with different billets,including high-efficiency strong cooling mold and mold vibration optimization,control of molten steel flow and liquid level fluctuation in mold,high-speed mold powder technology,breakout prediction technology of high-speed continuous casting and dynamic control of secondary cooling.In the future,the application of more advanced technologies will promote the casting speed to a higher direction,such as"three-dimensional multi-taper"mold,variable speed cooling mold,non Newtonian fluid mold powder,strong uniform and efficient secondary cooling technology,and intelligent auxiliary equipment for high-speed continuous casting.
作者
朱立光
郭志红
Zhu Liguang;Guo Zhihong(College of Material Science and Engineering of Hebei University of Science and Technology,Shijiazhuang 050018,Hebei)
出处
《河北冶金》
2021年第6期1-10,共10页
Hebei Metallurgy
基金
国家自然科学基金资助项目(51774141)
河北省重点研发项目(19211009D)。
关键词
高速
连铸
结晶器
二冷
保护渣
电磁搅拌
high speed
continuous casting
mould
second cooling
mold powder
electromagnetic stirring
