Abstract：In order to reduce the central segregation of 400 mm ultra-thick slab，?several measures were?taken，?such as checking tie rod compensation in fan section，controlling the drive roller mechanical limiting mechanism bolt，and optimizing the structure of drive beam，that the roll gap of the drive roller was well controlled，the internal quality of slab was well improved，and the central?segregation?was?controlled?in class?C?2.0?or?below.?The?results?show that the central?segregation of slab?was?closely?related?to?the?roll?gap of?drive roller at solidification end during soft reduction. Strictly?controlling the?roll gap of the drive roller can?reduce?the?central?segregation effectively.
樊星辰，赵 丹，贾广顺，郑翠军，孙旭伟，田炎波. 特厚板坯连铸机驱动辊辊缝控制技术研究[J]. 中国钢铁期刊网, 2015, 34(5): 72-75.
FAN Xing-chen，ZHAO Dan，JIA Guang-shun，ZHENG Cui-jun，SUN Xu-wei，TIAN Yan-bo. Study on roll gap control technology of the drive roller during ultra-thick slab process. Chinese Journal of Iron and Steel, 2015, 34(5): 72-75.
2015, Vol. 34 
