【摘要】 在钢铁生产过程，连铸坯按长度切割，轧钢按质量轧制，轧钢执行标准的不统一直接造成轧材总长度波动，导致大量短尺材和废品材的产生，成为亟待解决的行业痛点问题。对连铸坯定重切割技术基本原理、定重切割的影响因素及相关模型进行阐述，通过开发智能定重系统使得连铸坯按质量切割，实现钢轧耦合，并成功应用于河北唐银钢铁有限公司。模型运行结果表明，理论质量与实际质量之差为±0.2%的定重合格率达到90%以上，实重成材率达到97.5%以上，定尺率稳定在99.5%以上，极大提高了棒材小规格产品在保持高产的同时的负差稳定性和成材率水平，并为相关企业的定重切割技术开发提供参考。更多还原

【Abstract】 In the steel production process, continuous casting billets are cut according to length; rolled steel is rolled by weight; and the inconsistency of steel rolling implementation standards directly causes fluctuations in the total length of rolled products. These all resulted in the generation of a large number of short length materials and waste materials, which has become an industry pain point that needs to be solved urgently. The basic principles of fixed-weight cutting technology, influencing factors of fixed-weight cutting and related models of continuous casting billet are expounded. The intelligent fixed-weight system is developed to make continuous casting billets cut by weight to realize steel-rolling coupling, which has been successfully applied to Hebei Tangyin Iron and Steel Co., Ltd. The results of the model show that the difference between the theoretical weight and the actual weight is ±0.2%, the fixed weight pass rate reaches more than 90%, the actual weight yield reaches more than 97.5%, and the fixed size rate is stable at more than 99.5%. This greatly improves the negative difference stability and yield level of small bar size products while maintaining high yield, and provides a reference for the development of fixed weight cutting technology for related enterprises.更多还原