福建冶金2026，Vol.55Issue(2)：31-35,5.
1000 MPa级超高强钢工业大生产热轧关键工艺研究
Study on Key Hot Rolling Processes for Industrial-scale Production of 1000 MPa-grade Ultra-high Strength Steel
摘要
Abstract
To address the challenges of significant full-coil property fluctuations and pronounced head-tail strength differences during the industrial-scale acid rolling production of 1000 MPa-grade ultra-high strength steel(UHSS),this study systematically optimized key processes including hot rolling parameters,coiling temperature,laminar cooling patterns,and post-coiling thermal covers through a coordinated multi-parameter control strategy.The results demonstrate that high-temperature coiling(683 °C)reduced the standard deviation of hot-rolled yield strength by 75％.The U-shaped cooling technique restricted head-tail yield strength fluctuation from 239 MPa to 85 MPa.Application of thermal covers suppressed abnormal yield strength elevation by 104 MPa at the strip tail.This work provides valuable insights for industrial-scale production of 1000 MPa-grade UHSS through systematic optimization of hot rolling process parameters.关键词
超高强钢/热轧工艺/性能均匀性/高温卷取/层流冷却Key words
ultra-high strength steel/hot rolling process/property uniformity/high-temperature coiling/laminar cooling引用本文复制引用
刘自权,贾亚飞..1000 MPa级超高强钢工业大生产热轧关键工艺研究[J].福建冶金,2026,55(2):31-35,5.基金项目
河北省重大科技成果转化专项项目(项目编号18041033Z) （项目编号18041033Z）
