板坯连铸轻压下成套技术的工业化应用

Industrial Application of the Packaged Soft-reduction Technology for Slab Continuous Casting

成功地开发出了具有完全自主知识产权的CISDI板坯连铸轻压下成套技术,其包含功能强大的算法先进的冶金工艺模型、结构优化的具有较高强度的扇形段设备、监控功能全面的基础自动化程序以及运行稳定可靠的液压系统平台和自动化系统平台,具备静态轻压下和动态轻压下两大控制功能,且具有位置控制、压力控制和软夹紧控制三种辊缝调节模式,并从设备保护和生产安全的角度考虑引入了扇形段时序压下、压下量自适应调整和漏钢预警强制保护等功能机制,该技术已在柳钢六号板坯连铸机上投入了正常的工业化应用,铸机生产顺利,系统运行稳定,在改善中心偏析和中心疏松等板坯内部质量方面取得了良好的冶金效果。

Based on the conception of integration and optimization of process, mechanical, electric and hydraulic system, the advanced CISDI packaged soft-reduction technology for slab continuous casting with our full intellectual property rights has been developed successfully, which consists of the metallurgical process models with strong function and advanced arithmetic, the segment equipments with optimized structure and high strength, the basic automation program with full inspection and control function, the reliable stable hydraulic system and automatic system. It contains two control modules, viz., the static soft-reduction function ＆ dynamic soft-reduction function, and three gap-adjustment modes, viz., the position-control mode, pressure-control mode ＆ soft-clamping mode. From the opinions of equipment protection and production safety, some functional mechanism such as segment ordinal action, gap self-adapting adjustment, and forced protection for breakout prediction have been adopted. The whole system has been put into the industrial practice on the No. 6 slab caster of Liu steel, which has shown the smooth caster operation, the steady running of system, and the good metallurgical effects on improvement of internal quality of slab like center segregation and center looseness.