酸洗-冷轧联合机组生产切换策略

Production changeover policy on continuous descaling and cold-rolling mills

以钢铁企业的冷轧生产过程为背景,分析了酸洗-冷轧联合机组与后续机组间的生产协调特征,探讨了在确保生产连续运行的前提下降低库存水准和降低切换频率的机组切换策略,建立了确定酸洗-冷轧联合机组切换时长和切换批量的优化模型,研究了用于模型求解的切换规则,开发了面向生产实际的应用算法.对企业生产实际数据的计算和分析表明,算法具有良好的计算效率和适用性.

The cooperation mechanism between a continuous descaling and cold-rolling mill （CDCM） and its downstream machines, which is the bottleneck in cold rolling production management, is under consideration. The production changeover policy for the CDCM is studied to assure the continuity of production and to reduce both the inventories of work in process and the changeover frequency in production. A mathematical model is built to determin the order and lot size on the CDCM. A heuristic algorithm and three changeover rules are developed to solve practical problems. Computational results show the algorithm＇s effectiveness and adaptability with the data obtained from production practices.