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高品质板带形-性-表综合控制技术的发展

Development of integrated control technology for shape-property-surface quality of high-quality strip

  • 摘要: 针对高品质板带生产过程中板形、性能以及表面质量等关键指标综合控制的难题,介绍了我国在高品质板带形-性-表综合控制技术方面取得的成果。从热轧板带平直度检测、轧辊及板形状态的智能预报系统、弯辊及轧辊轴向横移综合控制模型以及冷热轧工序板形前馈控制等方面,介绍了多模态信息融合检测与多机架多工序协同的板形控制技术;从热轧跨工序过程显微组织参数与力学性能控制模型及热连轧带钢组织性能预控等方面,介绍了基于大模型的热轧过程工艺与力学性能控制技术;从板带表面缺陷无监督分类检测算法以及表面缺陷及特性综合控制等方面,介绍了高品质板带表面特性智能模拟及控制技术。在此基础上,叙述了该技术成果的现场应用情况,并对高品质板带形-性-表综合控制的发展进行了展望。

     

    Abstract: Aiming at the challenge of integrated control of key indicators such as shape, properties, and surface quality in the production of high-quality sheet and strip, the achievements of China in the integrated control technology of shape-property-surface for high-quality sheet and strip were introduced. The strip shape control technologies of multi-modal information fusion detection and multi-stand and multi-process coordination were briefly described from the aspects of straightness detection of hot rolled strip, intelligent prediction system of roll and strip shape state, comprehensive control model of roll bending and axial shifting, and strip shape feedforward control of cold and hot rolling process. The control technologies of hot rolling process and mechanical properties based on large model were briefly described from the aspects of microstructure parameters and mechanical properties control model of hot rollingprocess and pre-control of microstructure properties of hot continuous strip rolling. The intelligent simulation and control technology of high-quality strip surface characteristics was briefly described from the aspects of unsupervised classification detection algorithm for surface defects and comprehensive control of surface defects and characteristics. On this basis, the field applications of these technical achievements were described, and the development of comprehensive control of high-quality sheent and strip was prospected.

     

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