Abstract：During the production of high strength weathering resistant steel in a steel plant, the main problem was that there were two-sided waves on the specification below 3.0 mm, which could not be eliminated after leveling. Through the study of the uniformity of deformation and laminar cooling between frames, the main reason for poor shape of high strength weathering resistant plate is analyzed. Through optimizing equipment condition and adjusting rolling process, the method to improve uneven laminar cooling and uneven deformation between frames were studied. The results showed that by reducing the rolling speed and finishing temperature, and adjusting the laminar cooling mode, the laminar cooling speed is reduced, the homogeneity of laminar cooling was improved, and the temperature difference of cross section at the inlet of laminar cooling was reduced by 15-20 ℃. The flatness of test coil was greatly improved after the above measures were taken. The proportion of bad flatness coil was reduced from 70%-80% to 2%-4%, which met the requirements of field production.
焦安杰, 张盛攀, 李燕春, 陈亮, 刘健. 轧制工艺对高强耐候钢板形控制的影响[J]. 中国冶金, 2021, 31(6): 82-86.
JIAO An-jie, ZHANG Sheng-pan, LI Yan-chun, CHEN Liang, LIU Jian. Effect of rolling process on shape control of high strength weathering resistant steel scale[J]. China Metallurgy, 2021, 31(6): 82-86.
2021, Vol. 31 
