热轧带钢头部厚度精度提升优化策略  

Optimization Strategy for Improving the Accuracy of the Head Thickness of Hot-rolled strip steel

作　　者：禤行朋 龙昭宇 韦皓 莫琳琳 龙训均 Xuan Xingpeng;Long Zhaoyu;Wei Hao;Mo Linlin;Long Xunjun(Hot Rolled Plate and Strip Plant,Liuzhou Steel Group Co.,Ltd.,Liuzhou Guangxi 545000,China)

机构地区：[1]广西柳州钢铁集团热轧板带厂,广西柳州545000

出　　处：《山西冶金》2025年第1期242-244,共3页Shanxi Metallurgy

摘　　要：针对换辊开轧、换钢种、换规格、切换空过机架或不空过轧制第一块头部厚度超差等问题,通过建立换辊开轧首块模型参数初始化表、测试并优化带钢水流量和开启时序、建立变形抗力补偿系数分档表、自学习速度分档表和自学习纠偏等优化策略,以上问题得到有效解决。优化后,换钢种或换规格首块模型设定头部厚度命中率由80.17%提高到90.42%,因厚度不命中导致改判其他厚度的改判率降低约0.15%。In response to issues such as roll changing,steel type changing,specification changing,and switching between empty or no empty rolling of the first block head thickness exceeding the tolerance,optimization strategies were implemented by establishing a parameter initialization table for roll changing and opening the first block model,testing and optimizing the flow rate and opening timing of the molten steel,establishing a deformation resistance compensation coefficient grading table,self-learning speed grading table,and self-learning correction.The hit rate of the head thickness setting in the first block model for steel type or specification changing increased from 80.17% to 90.42%,while the change rate for other thicknesses decreased by about 0.15% due to thickness misses.

关 键 词：热轧 头部厚度 换规格 

分 类 号：TG335.5[金属学及工艺—金属压力加工]