Discussion on foot roll length design of high speed for billet
GUO Chun-guang1, QIAN Liang2, PEN Can-feng1, LI Fu-shuai2, XIE Chang-chuan2, HAN Zhan-guang2, ZHOU Gan-shui2
1. Yangchun New Iron and Steel Co.,Ltd., Yangchun 529600, Guangdong, China; 2. Beijing Metallurgical Technology Research Institute, WISDRI CCTEC Engineering Co.,Ltd., Beijing 100028, China
Abstract：For billet with high casting speed, the design of foot roll length will have a key impact on billet size, quality and production. Based on the three-dimensional creep finite element bulging calculation model of WISDRI CCTEC and the practice results of billet high casting speed, the specific method and standard for determining the length of billet foot roll are given. For billet, the standard of determining the length of foot roll is 2 m non-clamping bulge less than 0.87 mm; 155 mm×155 mm billet should meet 5 m/min casting speed, and the end position of foot roll should be 1.18 m from the meniscus of mould, corresponding to two rows of foot roller. Field practice proves that the method and standard for determining the length of foot roll given can fully meet the design and production of billet with high casting speed.
2020, Vol. 39 
