利用连铸结晶器热监控预测钢非规则初始凝固的研究进展

李秋平; 文光华; 陈富杭; 唐萍; 侯自兵; 莫歆韵

doi:10.1007/s12613-023-2798-z

Volume 31 Issue 5

May 2024

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文章导航 > 矿物冶金与材料学报（英文） > 2024 > 31(5): 1003-1015

Qiuping Li, Guanghua Wen, Fuhang Chen, Ping Tang, Zibing Hou, and Xinyun Mo, Irregular initial solidification by mold thermal monitoring in the continuous casting of steels: A review, Int. J. Miner. Metall. Mater., 31(2024), No. 5, pp. 1003-1015. https://doi.org/10.1007/s12613-023-2798-z

Cite this article as:

Qiuping Li, Guanghua Wen, Fuhang Chen, Ping Tang, Zibing Hou, and Xinyun Mo, Irregular initial solidification by mold thermal monitoring in the continuous casting of steels: A review, Int. J. Miner. Metall. Mater., 31(2024), No. 5, pp. 1003-1015. https://doi.org/10.1007/s12613-023-2798-z

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特约综述

利用连铸结晶器热监控预测钢非规则初始凝固的研究进展

1)
重庆大学材料科学与工程学院, 重庆 400044, 中国
2)
重庆市钒钛冶金及新材料重点实验室, 重庆 400044, 中国

通讯作者:
文光华 E-mail: wengh@cqu.edu.cn

文章亮点

(1) 综述了结晶器热监控系统监测非规则凝固现象的研究现状。

(2) 分析了保护渣在结晶器内部的行为对监测非规则初始凝固现象的影响。

(3) 总结了结晶器热监控对非规则初始凝固现象监测的研究不足和未来发展方向。

中文摘要

连铸结晶器内偶然发生的非规则初始凝固现象，包括粘结、深振痕、凹陷和裂纹等铸坯质量问题，是目前制约高效连铸发展的重要因素。结晶器热监控系统基于在钢液初始凝固过程中传热引起的温度变化，利用热电偶测温技术对结晶器内部情况进行实时监测与评估，成为了解决非规则凝固问题的有效方法。此系统已被广泛应用于众多钢铁公司进行粘结漏钢预报，但对于凹陷、纵裂等表面质量问题的监测仍不成熟。因此，有必要通过深入研究，以发挥MTM系统的潜在优势进行结晶器内部情况的全面监控。本文总结了非规则初始凝固现象的特点，并系统综述了结晶器热监控系统对这些现象的研究现状。此外，还分析了保护渣在结晶器内部的行为对非规则初始凝固现象监测的影响。最后，讨论了非规则初始凝固现象的形成机理和监测情况的不足，并进一步探讨了未来的发展方向。

关键词:

Invited Review

Irregular initial solidification by mold thermal monitoring in the continuous casting of steels: A review

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Abstract

Abstract

Occasional irregular initial solidification phenomena, including stickers, deep oscillation marks, depressions, and surface cracks of strand shells in continuous casting molds, are important limitations for developing the high-efficiency continuous casting of steels. The application of mold thermal monitoring (MTM) systems, which use thermocouples to detect and respond to temperature variations in molds, has become an effective method to address irregular initial solidification phenomena. Such systems are widely applied in numerous steel companies for sticker breakout prediction. However, monitoring the surface defects of strands remains immature. Hence, in-depth research is necessary to utilize the potential advantages and comprehensive monitoring of MTM systems. This paper summarizes what is included in the irregular initial solidification phenomena and systematically reviews the current state of research on these phenomena by the MTM systems. Furthermore, the influences of mold slag behavior on monitoring these phenomena are analyzed. Finally, the remaining problems of the formation mechanisms and investigations of irregular initial solidification phenomena are discussed, and future research directions are proposed.
- irregular initial solidification;
- mold thermal monitoring;
- continuous casting;
- mold slag;
- thermocouple

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