Medium plate TMCP rolling process

• Main Authors: GUO ZHANGHUA, WANG JIAN, NAN SHILEI, PEI XIAODONG, WANG YONGFENG, WANG JIANJUN
• Format: Patent
• Language: Chinese; English
• Published: 21.01.2022
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; ROLLING OF METAL; TRANSPORTING

The invention discloses a medium plate TMCP (Thermal Mechanical Control Processing) rolling process. The medium plate TMCP rolling process comprises the following steps of: firstly, determining that the thickness of a blank is less than 250mm and the finish rolling temperature is greater than 800 DEG C. According to the medium plate TMCP rolling process, grain growth after rolling of a complete recrystallization region is completed is effectively controlled, so that a finer grain structure is obtained; then, the rolling reduction is increased as much as possible, the rolling pass is reduced, and the finish rolling temperature is increased, so that the yield of the medium plate is increased, and the possibility of waste rolling is reduced; the original one-rolling and one-waiting mode on site is changed into one-rolling and two-waiting mode, one-time waiting is always carried out, the thickness of an intermediate billet is reduced, and the original 2.5-3.5 times of the thickness of a finished product of the in