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高拉速板坯连铸技术研究现状
Research Status of High Speed Slab Continuous Casting Technology
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- DOI:
- 作者:
- 陈 阳 1 ，王 芳 2 ，魏 民 1 ，张炯明 3 ，李富帅 1 ，陈志凌 1 ，李秀杰 1 ，王学思 1
CHEN Yang1 , WANG Fang2 , WEI Min1 , ZHANG Jiongming3 , LI Fushuai1 , CHEN Zhiling1 , LI Xiujie1 , WANG Xuesi1
- 作者单位:
- 1. 中冶南方连铸技术工程有限责任公司，湖北 武汉 430073；2. 武汉工程科技学院 人文学院，湖北 武汉 430200；3. 北 京科技大学 钢铁冶金新技术国家重点实验室，北京 100083
1. CCTEC Engineering Co., Ltd., Wuhan 430073, China; 2. Faculty of Humanities, Wuhan University of Engineering Science, Wuhan 430200, China; 3. State Key Laboratory of Advanced Metallurgy, University of Science and Technology Beijing, Beijing 100083, China
- 关键词:
- 高拉速；板坯连铸；FC 结晶器；液面波动；二冷精准控制
high casting speed; slab continuous casting; FC mold; liquid level fluctuation; precise control of secondary cooling
- 摘要:
- 常规板坯铸机浇注窄断面铸坯或生产品种钢时，浇注周期被迫延长，难以实现炉机匹配，严重制约了炼钢
车间的生产能力，因此提高连铸机的生产率迫在眉睫，高拉速已成为现代连铸发展的重要方向。 本文回顾了国内外高拉
速板坯连铸技术发展历程，总结了高拉速连铸的技术特点，重点介绍了高效强冷结晶器、非正弦振动、钢液流动控制、高
拉速结晶器保护渣、FC (flow control)结晶器、二冷精准控制等多项关键技术，用于解决高拉速板坯稳定生产的技术难
题。 高拉速的实现是一项集工艺、装备、生产操作与自动化控制于一体的综合性技术。
When casting narrow sections or producing high quality steel grades by conventional slab caster, the pouring cycle is forced to be prolonged, and it is difficult to achieve matching of the furnace and caster, which seriously restricts the production capacity of steelmaking workshops. Therefore, it is urgent to improve the productivity of caster, and high casting speed has become an important development direction of modern continuous casting. This paper reviews the development history of high speed slab continuous casting technology at home and abroad, summarizes the technical characteristics of high speed continuous casting, and focuses on the high efficiency strong cooling mold, nonsinusoidal oscillation, molten steel flow control, mold powder, FC (flow control) mold, secondary cooling precision control and other key technologies, which are used to solve the technical problem of stable production of slabs with high casting speed. The realization of high casting speed is a comprehensive technology integrating technology, equipment, production operation and automatic control.